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## org.apache.fop.render.afp.extensions
Class AbstractAFPExtensionObject

    java.lang.Object
      org.apache.fop.fo.FONode
          org.apache.fop.render.afp.extensions.AbstractAFPExtensionObject

All Implemented Interfaces:
  java.lang.Cloneable

Direct Known Subclasses:
  AFPIncludeFormMapElement, AFPInvokeMediumMapElement, AFPPageOverlayElement, AFPPageSetupElement

    public abstract class AbstractAFPExtensionObject

extends FONode

Base class for the AFP-specific extension elements.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.fop.fo.FONode
`FONode.FONodeIterator, FONode.GatherContextInfoFunction`

Field Summary
`protected AFPExtensionAttachment` | `extensionAttachment` the AFP extension attachment
`protected java.lang.String` | `name` the element name of this extension

Fields inherited from class org.apache.fop.fo.FONode
`FO_URI, FOX_URI, locator, log, parent, siblings`

Constructor Summary
`AbstractAFPExtensionObject(FONode parent, java.lang.String name)`

Method Summary
`void` | `endOfNode()` Primarily used for making final content model validation checks and/or informing the `FOEventHandler` that the end of this FO has been reached.
`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.
`java.lang.String` | `getLocalName()` Returns the local name (i.e.
`java.lang.String` | `getNamespaceURI()` Returns the namespace URI for this node
`java.lang.String` | `getNormalNamespacePrefix()` Returns the normally used namespace prefix for this node
`protected abstract ExtensionAttachment` | `instantiateExtensionAttachment()` Instantiates extension attachment object
`void` | `processNode(java.lang.String elementName, org.xml.sax.Locator locator, org.xml.sax.Attributes attlist, PropertyList propertyList)` Initialize the node with its name, location information, and attributes The attributes must be used immediately as the sax attributes will be altered for the next element.
`protected void` | `validateChildNode(org.xml.sax.Locator loc, java.lang.String nsURI, java.lang.String localName)` Checks to make sure, during SAX processing of input document, that the incoming node is valid for this (parent) node (e.g., checking to see that `fo:table` is not an immediate child of `fo:root`) called from `FOTreeBuilder.startElement(String, String, String, Attributes)` before constructing the child `FObj`.

Methods inherited from class org.apache.fop.fo.FONode
`addCharacters, addChildNode, attachSiblings, bind, canHaveMarkers, characters, charIterator, clone, clone, collectDelimitedTextRanges, collectDelimitedTextRanges, createPropertyList, decorateWithContextInfo, errorText, finalizeNode, gatherContextInfo, getBuilderContext, getChildNodes, getChildNodes, getContentHandlerFactory, getContextInfo, getContextInfoAlt, getFOEventHandler, getFOValidationEventProducer, getLocator, getLocatorString, getLogger, getName, getName, getNameId, getNodePrefix, getNodeString, getParent, getRoot, getStructureTreeElement, getUserAgent, inMarker, invalidChildError, invalidChildError, invalidPropertyValueError, isBidiRangeBlockItem, isDelimitedTextRangeBoundary, missingChildElementError, missingChildElementError, missingPropertyError, nodesOutOfOrderError, nodesOutOfOrderError, notSupportedChildError, removeChild, setLocator, setStructureTreeElement, startOfNode, tooManyNodesError, tooManyNodesError, tooManyNodesError, validateChildNode, warningText`

Methods inherited from class java.lang.Object
`equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Field Detail

### extensionAttachment

    protected AFPExtensionAttachment extensionAttachment

  the AFP extension attachment

### name

    protected java.lang.String name

  the element name of this extension

Constructor Detail

### AbstractAFPExtensionObject

    public AbstractAFPExtensionObject(FONode parent,
                                      java.lang.String name)

Parameters:
  `parent` - the parent formatting object
  `name` - the name of the afp element
See Also:
  `FONode.FONode(FONode)`

Method Detail

### validateChildNode

    protected void validateChildNode(org.xml.sax.Locator loc,
                                     java.lang.String nsURI,
                                     java.lang.String localName)
                              throws ValidationException

  Checks to make sure, during SAX processing of input document, that the incoming node is valid for this (parent) node (e.g., checking to see that `fo:table` is not an immediate child of `fo:root`) called from `FOTreeBuilder.startElement(String, String, String, Attributes)` before constructing the child `FObj`.

  Overrides:
    `validateChildNode` in class `FONode`
  Parameters:
    `loc` - location in the FO source file
    `nsURI` - namespace of incoming node
    `localName` - name of the incoming node (without namespace prefix)
  Throws:
    `ValidationException` - if incoming node not valid for parent

### getNamespaceURI

    public java.lang.String getNamespaceURI()

  Returns the namespace URI for this node

  Overrides:
    `getNamespaceURI` in class `FONode`
  Returns:
    the namespace URI for this node

### getNormalNamespacePrefix

    public java.lang.String getNormalNamespacePrefix()

  Returns the normally used namespace prefix for this node

  Specified by:
    `getNormalNamespacePrefix` in class `FONode`
  Returns:
    the normally used namespace prefix for this kind of node (ex. "fo" for XSL-FO)

### processNode

    public void processNode(java.lang.String elementName,
                            org.xml.sax.Locator locator,
                            org.xml.sax.Attributes attlist,
                            PropertyList propertyList)
                     throws FOPException

  Initialize the node with its name, location information, and attributes The attributes must be used immediately as the sax attributes will be altered for the next element.

  Overrides:
    `processNode` in class `FONode`
  Parameters:
    `elementName` - element name (e.g., "fo:block")
    `locator` - Locator object (ignored by default)
    `attlist` - Collection of attributes passed to us from the parser.
    `propertyList` - the property list of the parent node
  Throws:
    `FOPException` - for errors or inconsistencies in the attributes

### endOfNode

    public void endOfNode()
                   throws FOPException

  Primarily used for making final content model validation checks and/or informing the `FOEventHandler` that the end of this FO has been reached. The default implementation simply calls `FONode.finalizeNode()`, without sending any event to the `FOEventHandler`.

  Note: the recommended way to override this method in subclasses is

  `super.endOfNode(); // invoke finalizeNode()`

  `getFOEventHandler().endXXX(); // send endOfNode() notification`

  Overrides:
    `endOfNode` in class `FONode`
  Throws:
    `FOPException` - if there's a problem during processing

### instantiateExtensionAttachment

    protected abstract ExtensionAttachment instantiateExtensionAttachment()

  Instantiates extension attachment object

  Returns:
    extension attachment

### 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.

### getLocalName

    public java.lang.String getLocalName()

  Returns the local name (i.e. without namespace prefix) of the node

  Specified by:
    `getLocalName` in class `FONode`
  Returns:
    the local name of this node

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