Package com.itextpdf.kernel.xmp

Interface XMPMeta

All Superinterfaces:
Cloneable
All Known Implementing Classes:
XMPMetaImpl
public interface XMPMeta extends Cloneable
This class represents the set of XMP metadata as a DOM representation. It has methods to read and modify all kinds of properties, create an iterator over all properties and serialize the metadata to a String, byte-array or OutputStream.
Since:
20.01.2006

  • Method Details

    • getProperty

      XMPProperty getProperty (String schemaNS, String propName) throws XMPException
      The property value getter-methods all take a property specification: the first two parameters are always the top level namespace URI (the "schema" namespace) and the basic name of the property being referenced. See the introductory discussion of path expression usage for more information.

      All of the functions return an object inherited from PropertyBase or null if the property does not exists. The result object contains the value of the property and option flags describing the property. Arrays and the non-leaf levels of nodes do not have values.

      See PropertyOptions for detailed information about the options.

      This is the simplest property getter, mainly for top level simple properties or after using the path composition functions in XMPPathFactory.

      Parameters:
      schemaNS - The namespace URI for the property. May be null or the empty string if the first component of the propName path contains a namespace prefix. The URI must be for a registered namespace.
      propName - The name of the property. May be a general path expression, must not be null or the empty string. Using a namespace prefix on the first component is optional. If present without a schemaNS value then the prefix specifies the namespace. The prefix must be for a registered namespace. If both a schemaNS URI and propName prefix are present, they must be corresponding parts of a registered namespace.
      Returns:
      Returns a XMPProperty containing the value and the options or null if the property does not exist.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • getArrayItem

      XMPProperty getArrayItem (String schemaNS, String arrayName, int itemIndex) throws XMPException
      Provides access to items within an array. The index is passed as an integer, you need not worry about the path string syntax for array items, convert a loop index to a string, etc.
      Parameters:
      schemaNS - The namespace URI for the array. Has the same usage as in getProperty.
      arrayName - The name of the array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty().
      itemIndex - The index of the desired item. Arrays in XMP are indexed from 1. The constant XMPConst.ARRAY_LAST_ITEM always refers to the last existing array item.
      Returns:
      Returns a XMPProperty containing the value and the options or null if the property does not exist.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • countArrayItems

      int countArrayItems (String schemaNS, String arrayName) throws XMPException
      Returns the number of items in the array.
      Parameters:
      schemaNS - The namespace URI for the array. Has the same usage as in getProperty.
      arrayName - The name of the array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty().
      Returns:
      Returns the number of items in the array.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • getStructField

      XMPProperty getStructField (String schemaNS, String structName, String fieldNS, String fieldName) throws XMPException
      Provides access to fields within a nested structure. The namespace for the field is passed as a URI, you need not worry about the path string syntax.

      The names of fields should be XML qualified names, that is within an XML namespace. The path syntax for a qualified name uses the namespace prefix. This is unreliable since the prefix is never guaranteed. The URI is the formal name, the prefix is just a local shorthand in a given sequence of XML text.

      Parameters:
      schemaNS - The namespace URI for the struct. Has the same usage as in getProperty.
      structName - The name of the struct. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty().
      fieldNS - The namespace URI for the field. Has the same URI and prefix usage as the schemaNS parameter.
      fieldName - The name of the field. Must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the structName parameter.
      Returns:
      Returns a XMPProperty containing the value and the options or null if the property does not exist. Arrays and non-leaf levels of structs do not have values.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • getQualifier

      XMPProperty getQualifier (String schemaNS, String propName, String qualNS, String qualName) throws XMPException
      Provides access to a qualifier attached to a property. The namespace for the qualifier is passed as a URI, you need not worry about the path string syntax. In many regards qualifiers are like struct fields. See the introductory discussion of qualified properties for more information.

      The names of qualifiers should be XML qualified names, that is within an XML namespace. The path syntax for a qualified name uses the namespace prefix. This is unreliable since the prefix is never guaranteed. The URI is the formal name, the prefix is just a local shorthand in a given sequence of XML text.

      Note: Qualifiers are only supported for simple leaf properties at this time.

      Parameters:
      schemaNS - The namespace URI for the struct. Has the same usage as in getProperty.
      propName - The name of the property to which the qualifier is attached. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as in getProperty().
      qualNS - The namespace URI for the qualifier. Has the same URI and prefix usage as the schemaNS parameter.
      qualName - The name of the qualifier. Must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the propName parameter.
      Returns:
      Returns a XMPProperty containing the value and the options of the qualifier or null if the property does not exist. The name of the qualifier must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the propName parameter.

      The value of the qualifier is only set if it has one (Arrays and non-leaf levels of structs do not have values).

      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • setProperty

      void setProperty (String schemaNS, String propName, Object propValue, PropertyOptions options) throws XMPException
      The property value setters all take a property specification, their differences are in the form of this. The first two parameters are always the top level namespace URI (the schema namespace) and the basic name of the property being referenced. See the introductory discussion of path expression usage for more information.

      All of the functions take a string value for the property and option flags describing the property. The value must be Unicode in UTF-8 encoding. Arrays and non-leaf levels of structs do not have values. Empty arrays and structs may be created using appropriate option flags. All levels of structs that is assigned implicitly are created if necessary. appendArayItem implicitly creates the named array if necessary.

      See PropertyOptions for detailed information about the options.

      This is the simplest property setter, mainly for top level simple properties or after using the path composition functions in XMPPathFactory.

      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty.
      propName - The name of the property. Has the same usage as in getProperty().
      propValue - the value for the property (only leaf properties have a value). Arrays and non-leaf levels of structs do not have values. Must be null if the value is not relevant.
      The value is automatically detected: Boolean, Integer, Long, Double, XMPDateTime and byte[] are handled, on all other toString() is called.
      options - Option flags describing the property. See the earlier description.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • setProperty

      void setProperty (String schemaNS, String propName, Object propValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI
      propName - The name of the property
      propValue - the value for the property
      Throws:
      XMPException - Wraps all errors and exceptions
      See Also:

    • setArrayItem

      void setArrayItem (String schemaNS, String arrayName, int itemIndex, String itemValue, PropertyOptions options) throws XMPException
      Replaces an item within an array. The index is passed as an integer, you need not worry about the path string syntax for array items, convert a loop index to a string, etc. The array passed must already exist. In normal usage the selected array item is modified. A new item is automatically appended if the index is the array size plus 1.
      Parameters:
      schemaNS - The namespace URI for the array. Has the same usage as in getProperty.
      arrayName - The name of the array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty.
      itemIndex - The index of the desired item. Arrays in XMP are indexed from 1. To address the last existing item, use countArrayItems(String, String) to find out the length of the array.
      itemValue - the new value of the array item. Has the same usage as propValue in setProperty().
      options - the set options for the item.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • setArrayItem

      void setArrayItem (String schemaNS, String arrayName, int itemIndex, String itemValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI
      arrayName - The name of the array
      itemIndex - The index to insert the new item
      itemValue - the new value of the array item
      Throws:
      XMPException - Wraps all errors and exceptions
      See Also:

    • insertArrayItem

      void insertArrayItem (String schemaNS, String arrayName, int itemIndex, String itemValue, PropertyOptions options) throws XMPException
      Inserts an item into an array previous to the given index. The index is passed as an integer, you need not worry about the path string syntax for array items, convert a loop index to a string, etc. The array passed must already exist. In normal usage the selected array item is modified. A new item is automatically appended if the index is the array size plus 1.
      Parameters:
      schemaNS - The namespace URI for the array. Has the same usage as in getProperty.
      arrayName - The name of the array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty.
      itemIndex - The index to insert the new item. Arrays in XMP are indexed from 1. Use XMPConst.ARRAY_LAST_ITEM to append items.
      itemValue - the new value of the array item. Has the same usage as propValue in setProperty().
      options - the set options that decide about the kind of the node.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • insertArrayItem

      void insertArrayItem (String schemaNS, String arrayName, int itemIndex, String itemValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the array
      arrayName - The name of the array
      itemIndex - The index to insert the new item
      itemValue - the value of the array item
      Throws:
      XMPException - Wraps all errors and exceptions
      See Also:

    • appendArrayItem

      void appendArrayItem (String schemaNS, String arrayName, PropertyOptions arrayOptions, String itemValue, PropertyOptions itemOptions) throws XMPException
      Simplifies the construction of an array by not requiring that you pre-create an empty array. The array that is assigned is created automatically if it does not yet exist. Each call to appendArrayItem() appends an item to the array. The corresponding parameters have the same use as setArrayItem(). The arrayOptions parameter is used to specify what kind of array. If the array exists, it must have the specified form.
      Parameters:
      schemaNS - The namespace URI for the array. Has the same usage as in getProperty.
      arrayName - The name of the array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propPath in getProperty.
      arrayOptions - Option flags describing the array form. The only valid options are Note: the array options only need to be provided if the array is not already existing, otherwise you can set them to null or use appendArrayItem(String, String, String).
      itemValue - the value of the array item. Has the same usage as propValue in getProperty.
      itemOptions - Option flags describing the item to append (PropertyOptions)
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • appendArrayItem

      void appendArrayItem (String schemaNS, String arrayName, String itemValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the array
      arrayName - The name of the array
      itemValue - the value of the array item
      Throws:
      XMPException - Wraps all errors and exceptions
      See Also:

    • setStructField

      void setStructField (String schemaNS, String structName, String fieldNS, String fieldName, String fieldValue, PropertyOptions options) throws XMPException
      Provides access to fields within a nested structure. The namespace for the field is passed as a URI, you need not worry about the path string syntax. The names of fields should be XML qualified names, that is within an XML namespace. The path syntax for a qualified name uses the namespace prefix, which is unreliable because the prefix is never guaranteed. The URI is the formal name, the prefix is just a local shorthand in a given sequence of XML text.
      Parameters:
      schemaNS - The namespace URI for the struct. Has the same usage as in getProperty.
      structName - The name of the struct. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty.
      fieldNS - The namespace URI for the field. Has the same URI and prefix usage as the schemaNS parameter.
      fieldName - The name of the field. Must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the structName parameter.
      fieldValue - the value of thefield, if the field has a value. Has the same usage as propValue in getProperty.
      options - Option flags describing the field. See the earlier description.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • setStructField

      void setStructField (String schemaNS, String structName, String fieldNS, String fieldName, String fieldValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the struct
      structName - The name of the struct
      fieldNS - The namespace URI for the field
      fieldName - The name of the field
      fieldValue - the value of the field
      Throws:
      XMPException - Wraps all errors and exceptions
      See Also:

    • setQualifier

      void setQualifier (String schemaNS, String propName, String qualNS, String qualName, String qualValue, PropertyOptions options) throws XMPException
      Provides access to a qualifier attached to a property. The namespace for the qualifier is passed as a URI, you need not worry about the path string syntax. In many regards qualifiers are like struct fields. See the introductory discussion of qualified properties for more information. The names of qualifiers should be XML qualified names, that is within an XML namespace. The path syntax for a qualified name uses the namespace prefix, which is unreliable because the prefix is never guaranteed. The URI is the formal name, the prefix is just a local shorthand in a given sequence of XML text. The property the qualifier will be attached has to exist.
      Parameters:
      schemaNS - The namespace URI for the struct. Has the same usage as in getProperty.
      propName - The name of the property to which the qualifier is attached. Has the same usage as in getProperty.
      qualNS - The namespace URI for the qualifier. Has the same URI and prefix usage as the schemaNS parameter.
      qualName - The name of the qualifier. Must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the propName parameter.
      qualValue - A pointer to the null terminated UTF-8 string that is the value of the qualifier, if the qualifier has a value. Has the same usage as propValue in getProperty.
      options - Option flags describing the qualifier. See the earlier description.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • setQualifier

      void setQualifier (String schemaNS, String propName, String qualNS, String qualName, String qualValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the struct
      propName - The name of the property to which the qualifier is attached
      qualNS - The namespace URI for the qualifier
      qualName - The name of the qualifier
      qualValue - the value of the qualifier
      Throws:
      XMPException - Wraps all errors and exceptions
      See Also:

    • deleteProperty

      void deleteProperty (String schemaNS, String propName)
      Deletes the given XMP subtree rooted at the given property. It is not an error if the property does not exist.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty.

    • deleteArrayItem

      void deleteArrayItem (String schemaNS, String arrayName, int itemIndex)
      Deletes the given XMP subtree rooted at the given array item. It is not an error if the array item does not exist.
      Parameters:
      schemaNS - The namespace URI for the array. Has the same usage as in getProperty.
      arrayName - The name of the array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty().
      itemIndex - The index of the desired item. Arrays in XMP are indexed from 1. The constant XMPConst.ARRAY_LAST_ITEM always refers to the last existing array item.

    • deleteStructField

      void deleteStructField (String schemaNS, String structName, String fieldNS, String fieldName)
      Deletes the given XMP subtree rooted at the given struct field. It is not an error if the field does not exist.
      Parameters:
      schemaNS - The namespace URI for the struct. Has the same usage as in getProperty().
      structName - The name of the struct. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty.
      fieldNS - The namespace URI for the field. Has the same URI and prefix usage as the schemaNS parameter.
      fieldName - The name of the field. Must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the structName parameter.

    • deleteQualifier

      void deleteQualifier (String schemaNS, String propName, String qualNS, String qualName)
      Deletes the given XMP subtree rooted at the given qualifier. It is not an error if the qualifier does not exist.
      Parameters:
      schemaNS - The namespace URI for the struct. Has the same usage as in getProperty().
      propName - The name of the property to which the qualifier is attached. Has the same usage as in getProperty.
      qualNS - The namespace URI for the qualifier. Has the same URI and prefix usage as the schemaNS parameter.
      qualName - The name of the qualifier. Must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the propName parameter.

    • doesPropertyExist

      boolean doesPropertyExist (String schemaNS, String propName)
      Returns whether the property exists.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns true if the property exists.

    • doesArrayItemExist

      boolean doesArrayItemExist (String schemaNS, String arrayName, int itemIndex)
      Tells if the array item exists.
      Parameters:
      schemaNS - The namespace URI for the array. Has the same usage as in getProperty().
      arrayName - The name of the array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty().
      itemIndex - The index of the desired item. Arrays in XMP are indexed from 1. The constant XMPConst.ARRAY_LAST_ITEM always refers to the last existing array item.
      Returns:
      Returns true if the array exists, false otherwise.

    • doesStructFieldExist

      boolean doesStructFieldExist (String schemaNS, String structName, String fieldNS, String fieldName)
      DoesStructFieldExist tells if the struct field exists.
      Parameters:
      schemaNS - The namespace URI for the struct. Has the same usage as in getProperty().
      structName - The name of the struct. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty().
      fieldNS - The namespace URI for the field. Has the same URI and prefix usage as the schemaNS parameter.
      fieldName - The name of the field. Must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the structName parameter.
      Returns:
      Returns true if the field exists.

    • doesQualifierExist

      boolean doesQualifierExist (String schemaNS, String propName, String qualNS, String qualName)
      DoesQualifierExist tells if the qualifier exists.
      Parameters:
      schemaNS - The namespace URI for the struct. Has the same usage as in getProperty().
      propName - The name of the property to which the qualifier is attached. Has the same usage as in getProperty().
      qualNS - The namespace URI for the qualifier. Has the same URI and prefix usage as the schemaNS parameter.
      qualName - The name of the qualifier. Must be a single XML name, must not be null or the empty string. Has the same namespace prefix usage as the propName parameter.
      Returns:
      Returns true if the qualifier exists.

    • getLocalizedText

      XMPProperty getLocalizedText (String schemaNS, String altTextName, String genericLang, String specificLang) throws XMPException
      These functions provide convenient support for localized text properties, including a number of special and obscure aspects. Localized text properties are stored in alt-text arrays. They allow multiple concurrent localizations of a property value, for example a document title or copyright in several languages. The most important aspect of these functions is that they select an appropriate array item based on one or two RFC 3066 language tags. One of these languages, the "specific" language, is preferred and selected if there is an exact match. For many languages it is also possible to define a "generic" language that may be used if there is no specific language match. The generic language must be a valid RFC 3066 primary subtag, or the empty string. For example, a specific language of "en-US" should be used in the US, and a specific language of "en-UK" should be used in England. It is also appropriate to use "en" as the generic language in each case. If a US document goes to England, the "en-US" title is selected by using the "en" generic language and the "en-UK" specific language. It is considered poor practice, but allowed, to pass a specific language that is just an RFC 3066 primary tag. For example "en" is not a good specific language, it should only be used as a generic language. Passing "i" or "x" as the generic language is also considered poor practice but allowed. Advice from the W3C about the use of RFC 3066 language tags can be found at: http://www.w3.org/International/articles/language-tags/

      Note: RFC 3066 language tags must be treated in a case insensitive manner. The XMP Toolkit does this by normalizing their capitalization:

      • The primary subtag is lower case, the suggested practice of ISO 639.
      • All 2 letter secondary subtags are upper case, the suggested practice of ISO 3166.
      • All other subtags are lower case. The XMP specification defines an artificial language,
      • "x-default", that is used to explicitly denote a default item in an alt-text array.
      The XMP toolkit normalizes alt-text arrays such that the x-default item is the first item. The SetLocalizedText function has several special features related to the x-default item, see its description for details. The selection of the array item is the same for GetLocalizedText and SetLocalizedText:
      • Look for an exact match with the specific language.
      • If a generic language is given, look for a partial match.
      • Look for an x-default item.
      • Choose the first item.
      A partial match with the generic language is where the start of the item's language matches the generic string and the next character is '-'. An exact match is also recognized as a degenerate case. It is fine to pass x-default as the specific language. In this case, selection of an x-default item is an exact match by the first rule, not a selection by the 3rd rule. The last 2 rules are fallbacks used when the specific and generic languages fail to produce a match. getLocalizedText returns information about a selected item in an alt-text array. The array item is selected according to the rules given above. Note: In a future version of this API a method using Java java.lang.Locale will be added.
      Parameters:
      schemaNS - The namespace URI for the alt-text array. Has the same usage as in getProperty().
      altTextName - The name of the alt-text array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty().
      genericLang - The name of the generic language as an RFC 3066 primary subtag. May be null or the empty string if no generic language is wanted.
      specificLang - The name of the specific language as an RFC 3066 tag. Must not be null or the empty string.
      Returns:
      Returns an XMPProperty containing the value, the actual language and the options if an appropriate alternate collection item exists, null if the property. does not exist.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • setLocalizedText

      void setLocalizedText (String schemaNS, String altTextName, String genericLang, String specificLang, String itemValue, PropertyOptions options) throws XMPException
      Modifies the value of a selected item in an alt-text array. Creates an appropriate array item if necessary, and handles special cases for the x-default item. If the selected item is from a match with the specific language, the value of that item is modified. If the existing value of that item matches the existing value of the x-default item, the x-default item is also modified. If the array only has 1 existing item (which is not x-default), an x-default item is added with the given value. If the selected item is from a match with the generic language and there are no other generic matches, the value of that item is modified. If the existing value of that item matches the existing value of the x-default item, the x-default item is also modified. If the array only has 1 existing item (which is not x-default), an x-default item is added with the given value. If the selected item is from a partial match with the generic language and there are other partial matches, a new item is created for the specific language. The x-default item is not modified. If the selected item is from the last 2 rules then a new item is created for the specific language. If the array only had an x-default item, the x-default item is also modified. If the array was empty, items are created for the specific language and x-default. Note: In a future version of this API a method using Java java.lang.Locale will be added.
      Parameters:
      schemaNS - The namespace URI for the alt-text array. Has the same usage as in getProperty().
      altTextName - The name of the alt-text array. May be a general path expression, must not be null or the empty string. Has the same namespace prefix usage as propName in getProperty().
      genericLang - The name of the generic language as an RFC 3066 primary subtag. May be null or the empty string if no generic language is wanted.
      specificLang - The name of the specific language as an RFC 3066 tag. Must not be null or the empty string.
      itemValue - A pointer to the null terminated UTF-8 string that is the new value for the appropriate array item.
      options - Option flags, none are defined at present.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • setLocalizedText

      void setLocalizedText (String schemaNS, String altTextName, String genericLang, String specificLang, String itemValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the alt-text array
      altTextName - The name of the alt-text array
      genericLang - The name of the generic language
      specificLang - The name of the specific language
      itemValue - the new value for the appropriate array item
      Throws:
      XMPException - Wraps all errors and exceptions
      See Also:

    • getPropertyBoolean

      Boolean getPropertyBoolean (String schemaNS, String propName) throws XMPException
      These are very similar to getProperty() and SetProperty() above, but the value is returned or provided in a literal form instead of as a UTF-8 string. The path composition functions in XMPPathFactory may be used to compose an path expression for fields in nested structures, items in arrays, or qualifiers.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns a Boolean value or null if the property does not exist.
      Throws:
      XMPException - Wraps all exceptions that may occur, especially conversion errors.

    • getPropertyInteger

      Integer getPropertyInteger (String schemaNS, String propName) throws XMPException
      Convenience method to retrieve the literal value of a property.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns an Integer value or null if the property does not exist.
      Throws:
      XMPException - Wraps all exceptions that may occur, especially conversion errors.

    • getPropertyLong

      Long getPropertyLong (String schemaNS, String propName) throws XMPException
      Convenience method to retrieve the literal value of a property.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns a Long value or null if the property does not exist.
      Throws:
      XMPException - Wraps all exceptions that may occur, especially conversion errors.

    • getPropertyDouble

      Double getPropertyDouble (String schemaNS, String propName) throws XMPException
      Convenience method to retrieve the literal value of a property.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns a Double value or null if the property does not exist.
      Throws:
      XMPException - Wraps all exceptions that may occur, especially conversion errors.

    • getPropertyDate

      XMPDateTime getPropertyDate (String schemaNS, String propName) throws XMPException
      Convenience method to retrieve the literal value of a property.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns a XMPDateTime-object or null if the property does not exist.
      Throws:
      XMPException - Wraps all exceptions that may occur, especially conversion errors.

    • getPropertyCalendar

      Calendar getPropertyCalendar (String schemaNS, String propName) throws XMPException
      Convenience method to retrieve the literal value of a property.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns a Java Calendar-object or null if the property does not exist.
      Throws:
      XMPException - Wraps all exceptions that may occur, especially conversion errors.

    • getPropertyBase64

      byte[] getPropertyBase64 (String schemaNS, String propName) throws XMPException
      Convenience method to retrieve the literal value of a property.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns a byte[]-array contained the decoded base64 value or null if the property does not exist.
      Throws:
      XMPException - Wraps all exceptions that may occur, especially conversion errors.

    • getPropertyString

      String getPropertyString (String schemaNS, String propName) throws XMPException
      Convenience method to retrieve the literal value of a property. Note: There is no setPropertyString(), because setProperty() sets a string value.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in getProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      Returns:
      Returns a String value or null if the property does not exist.
      Throws:
      XMPException - Wraps all exceptions that may occur, especially conversion errors.

    • setPropertyBoolean

      void setPropertyBoolean (String schemaNS, String propName, boolean propValue, PropertyOptions options) throws XMPException
      Convenience method to set a property to a literal boolean value.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in setProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      propValue - the literal property value as boolean.
      options - options of the property to set (optional).
      Throws:
      XMPException - Wraps all exceptions that may occur.

    • setPropertyBoolean

      void setPropertyBoolean (String schemaNS, String propName, boolean propValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the property
      propName - The name of the property
      propValue - the literal property value as boolean
      Throws:
      XMPException - Wraps all exceptions
      See Also:

    • setPropertyInteger

      void setPropertyInteger (String schemaNS, String propName, int propValue, PropertyOptions options) throws XMPException
      Convenience method to set a property to a literal int value.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in setProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      propValue - the literal property value as int.
      options - options of the property to set (optional).
      Throws:
      XMPException - Wraps all exceptions that may occur.

    • setPropertyInteger

      void setPropertyInteger (String schemaNS, String propName, int propValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the property
      propName - The name of the property
      propValue - the literal property value as int
      Throws:
      XMPException - Wraps all exceptions
      See Also:

    • setPropertyLong

      void setPropertyLong (String schemaNS, String propName, long propValue, PropertyOptions options) throws XMPException
      Convenience method to set a property to a literal long value.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in setProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      propValue - the literal property value as long.
      options - options of the property to set (optional).
      Throws:
      XMPException - Wraps all exceptions that may occur.

    • setPropertyLong

      void setPropertyLong (String schemaNS, String propName, long propValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the property
      propName - The name of the property
      propValue - the literal property value as long
      Throws:
      XMPException - Wraps all exceptions
      See Also:

    • setPropertyDouble

      void setPropertyDouble (String schemaNS, String propName, double propValue, PropertyOptions options) throws XMPException
      Convenience method to set a property to a literal double value.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in setProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      propValue - the literal property value as double.
      options - options of the property to set (optional).
      Throws:
      XMPException - Wraps all exceptions that may occur.

    • setPropertyDouble

      void setPropertyDouble (String schemaNS, String propName, double propValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the property
      propName - The name of the property
      propValue - the literal property value as double
      Throws:
      XMPException - Wraps all exceptions
      See Also:

    • setPropertyDate

      void setPropertyDate (String schemaNS, String propName, XMPDateTime propValue, PropertyOptions options) throws XMPException
      Convenience method to set a property with an XMPDateTime-object, which is serialized to an ISO8601 date.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in setProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      propValue - the property value as XMPDateTime.
      options - options of the property to set (optional).
      Throws:
      XMPException - Wraps all exceptions that may occur.

    • setPropertyDate

      void setPropertyDate (String schemaNS, String propName, XMPDateTime propValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the property
      propName - The name of the property
      propValue - the property value as XMPDateTime
      Throws:
      XMPException - Wraps all exceptions
      See Also:

    • setPropertyCalendar

      void setPropertyCalendar (String schemaNS, String propName, Calendar propValue, PropertyOptions options) throws XMPException
      Convenience method to set a property with a Java Calendar-object, which is serialized to an ISO8601 date.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in setProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      propValue - the property value as Java Calendar.
      options - options of the property to set (optional).
      Throws:
      XMPException - Wraps all exceptions that may occur.

    • setPropertyCalendar

      void setPropertyCalendar (String schemaNS, String propName, Calendar propValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the property
      propName - The name of the property
      propValue - the property value as Calendar
      Throws:
      XMPException - Wraps all exceptions
      See Also:

    • setPropertyBase64

      void setPropertyBase64 (String schemaNS, String propName, byte[] propValue, PropertyOptions options) throws XMPException
      Convenience method to set a property from a binary byte[]-array, which is serialized as base64-string.
      Parameters:
      schemaNS - The namespace URI for the property. Has the same usage as in setProperty().
      propName - The name of the property. Has the same usage as in getProperty().
      propValue - the literal property value as byte array.
      options - options of the property to set (optional).
      Throws:
      XMPException - Wraps all exceptions that may occur.

    • setPropertyBase64

      void setPropertyBase64 (String schemaNS, String propName, byte[] propValue) throws XMPException
      Parameters:
      schemaNS - The namespace URI for the property
      propName - The name of the property
      propValue - the literal property value as byte array
      Throws:
      XMPException - Wraps all exceptions
      See Also:

    • iterator

      XMPIterator iterator() throws XMPException
      Constructs an iterator for the properties within this XMP object.
      Returns:
      Returns an XMPIterator.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.
      See Also:

    • iterator

      XMPIterator iterator (IteratorOptions options) throws XMPException
      Constructs an iterator for the properties within this XMP object using some options.
      Parameters:
      options - Option flags to control the iteration.
      Returns:
      Returns an XMPIterator.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.
      See Also:

    • iterator

      XMPIterator iterator (String schemaNS, String propName, IteratorOptions options) throws XMPException
      Construct an iterator for the properties within an XMP object. According to the parameters it iterates the entire data tree, properties within a specific schema, or a subtree rooted at a specific node.
      Parameters:
      schemaNS - Optional schema namespace URI to restrict the iteration. Omitted (visit all schema) by passing null or empty String.
      propName - Optional property name to restrict the iteration. May be an arbitrary path expression. Omitted (visit all properties) by passing null or empty String. If no schema URI is given, it is ignored.
      options - Option flags to control the iteration. See IteratorOptions for details.
      Returns:
      Returns an XMPIterator for this XMPMeta-object considering the given options.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • getObjectName

      String getObjectName()
      This correlates to the about-attribute, returns the empty String if no name is set.
      Returns:
      Returns the name of the XMP object.

    • setObjectName

      void setObjectName (String name)
      Parameters:
      name - Sets the name of the XMP object.

    • getPacketHeader

      String getPacketHeader()
      Returns:
      Returns the unparsed content of the processing instruction. This contains normally the attribute-like elements 'begin="" id="W5M0MpCehiHzreSzNTczkc9d"' and possibly the deprecated elements 'bytes="1234"' or 'encoding="XXX"'. If the parsed packet has not been wrapped into an xpacket, null is returned.

    • clone

      Object clone()
      Clones the complete metadata tree.
      Returns:
      Returns a deep copy of this instance.

    • sort

      void sort()
      Sorts the complete datamodel according to the following rules:
      • Schema nodes are sorted by prefix.
      • Properties at top level and within structs are sorted by full name, that is prefix + local name.
      • Array items are not sorted, even if they have no certain order such as bags.
      • Qualifier are sorted, with the exception of "xml:lang" and/or "rdf:type" that stay at the top of the list in that order.

    • normalize

      void normalize (ParseOptions options) throws XMPException
      Perform the normalization as a separate parsing step. Normally it is done during parsing, unless the parsing option ParseOptions.OMIT_NORMALIZATION is set to true. Note: It does no harm to call this method to an already normalized xmp object. It was a PDF/A requirement to get hand on the unnormalized XMPMeta object.
      Parameters:
      options - optional parsing options.
      Throws:
      XMPException - Wraps all errors and exceptions that may occur.

    • dumpObject

      String dumpObject()
      Renders this node and the tree unter this node in a human readable form.
      Returns:
      Returns a multiline string containing the dump.