org.apache.fop.fo.extensions.xmp

## Class AbstractMetadataElement

- java.lang.Object
- - org.apache.fop.fo.FONode
  - - org.apache.fop.fo.extensions.xmp.AbstractMetadataElement

- All Implemented Interfaces:
    java.lang.Cloneable, java.util.EventListener, ContentHandlerFactory.ObjectBuiltListener
  Direct Known Subclasses:
    RDFElement, XMPMetaElement

      public abstract class AbstractMetadataElement
      extends FONode
      implements ContentHandlerFactory.ObjectBuiltListener

  Abstract base class for the XMP and RDF root nodes.

- - ### Nested Class Summary

    - ### Nested classes/interfaces inherited from class org.apache.fop.fo.FONode

      `FONode.FONodeIterator, FONode.GatherContextInfoFunction`

  - ### Field Summary

    - ### Fields inherited from class org.apache.fop.fo.FONode

      `FO_URI, FOX_URI, locator, log, parent, siblings`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `AbstractMetadataElement(FONode parent)` Main constructor.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `ContentHandlerFactory` | `getContentHandlerFactory()` This method is overridden by extension elements and allows the extension element to return a `ContentHandlerFactory`.
    `ExtensionAttachment` | `getExtensionAttachment()` This method is overridden by extension elements and allows the extension element to return a pass-through attachment which the parent formatting objects should simply carry with them but otherwise ignore.
    `void` | `notifyObjectBuilt(java.lang.Object obj)` Notifies the listener when the object is fully built.

    - ### Methods inherited from class org.apache.fop.fo.FONode

      `addCharacters, addChildNode, attachSiblings, bind, canHaveMarkers, characters, charIterator, clone, clone, collectDelimitedTextRanges, collectDelimitedTextRanges, createPropertyList, decorateWithContextInfo, endOfNode, errorText, finalizeNode, gatherContextInfo, getBuilderContext, getChildNodes, getChildNodes, getContextInfo, getContextInfoAlt, getFOEventHandler, getFOValidationEventProducer, getLocalName, getLocator, getLocatorString, getLogger, getName, getName, getNameId, getNamespaceURI, getNodePrefix, getNodeString, getNormalNamespacePrefix, getParent, getRoot, getStructureTreeElement, getUserAgent, inMarker, invalidChildError, invalidChildError, invalidPropertyValueError, isBidiRangeBlockItem, isDelimitedTextRangeBoundary, missingChildElementError, missingChildElementError, missingPropertyError, nodesOutOfOrderError, nodesOutOfOrderError, notSupportedChildError, processNode, removeChild, setLocator, setStructureTreeElement, startOfNode, tooManyNodesError, tooManyNodesError, tooManyNodesError, validateChildNode, validateChildNode, warningText`

    - ### Methods inherited from class java.lang.Object

      `equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### AbstractMetadataElement

          public AbstractMetadataElement(FONode parent)

      Main constructor.
      Parameters:
        `parent` - the parent formatting object

  - ### Method Detail

    - #### getContentHandlerFactory

          public ContentHandlerFactory getContentHandlerFactory()

      This method is overridden by extension elements and allows the extension element to return a `ContentHandlerFactory`. This factory can create ContentHandler implementations that handle foreign XML content by either building up a specific DOM, a Java object or something else.
      Overrides:
        `getContentHandlerFactory` in class `FONode`
      Returns:
        the `ContentHandlerFactory` or `null` if not applicable

    - #### getExtensionAttachment

          public ExtensionAttachment getExtensionAttachment()

      This method is overridden by extension elements and allows the extension element to return a pass-through attachment which the parent formatting objects should simply carry with them but otherwise ignore. This mechanism is used to pass non-standard information from the FO tree through to the layout engine and the renderers.
      Overrides:
        `getExtensionAttachment` in class `FONode`
      Returns:
        the extension attachment if one is created by the extension element, null otherwise.

    - #### notifyObjectBuilt

          public void notifyObjectBuilt(java.lang.Object obj)

      Notifies the listener when the object is fully built.
      Specified by:
        `notifyObjectBuilt` in interface `ContentHandlerFactory.ObjectBuiltListener`
      Parameters:
        `obj` - the newly built object

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