org.apache.xerces.parsers
Class DOMBuilderImpl

java.lang.Object
  |
  +--org.apache.xerces.parsers.XMLParser
        |
        +--org.apache.xerces.parsers.AbstractXMLDocumentParser
              |
              +--org.apache.xerces.parsers.AbstractDOMParser
                    |
                    +--org.apache.xerces.parsers.DOMBuilderImpl
All Implemented Interfaces:
org.w3c.dom.ls.DOMBuilder, org.apache.xerces.xni.XMLDocumentHandler, org.apache.xerces.xni.XMLDTDContentModelHandler, org.apache.xerces.xni.XMLDTDHandler
Direct Known Subclasses:
DOMASBuilderImpl

public class DOMBuilderImpl
extends AbstractDOMParser
implements org.w3c.dom.ls.DOMBuilder

This is Xerces DOM Builder class. It uses the abstract DOM parser with a document scanner, a dtd scanner, and a validator, as well as a grammar pool.

Author:
Pavani Mukthipudi, Sun Microsystems Inc., Elena Litani, IBM, Rahul Srivastava, Sun Microsystems Inc.

Field Summary
protected static boolean DEBUG
           
protected static java.lang.String DTD_VALIDATION
           
protected static java.lang.String DYNAMIC_VALIDATION
          Dynamic validation
protected  java.lang.String fSchemaType
           
protected static java.lang.String NAMESPACES
          Feature identifier: namespaces.
protected static java.lang.String VALIDATION_FEATURE
          Feature id: validation.
protected static java.lang.String XML_SCHEMA_VALIDATION
           
protected static java.lang.String XMLSCHEMA
          XML Schema validation
 
Fields inherited from class org.apache.xerces.parsers.AbstractDOMParser
CORE_DOCUMENT_CLASS_NAME, CREATE_CDATA_NODES_FEATURE, CREATE_ENTITY_REF_NODES, CURRENT_ELEMENT_NODE, DEFAULT_DOCUMENT_CLASS_NAME, DEFER_NODE_EXPANSION, DOCUMENT_CLASS_NAME, fBaseURIStack, fCreateCDATANodes, fCreateEntityRefNodes, fCurrentCDATASection, fCurrentCDATASectionIndex, fCurrentEntityDecl, fCurrentNode, fCurrentNodeIndex, fDeferNodeExpansion, fDeferredDocumentImpl, fDeferredEntityDecl, fDocument, fDocumentClassName, fDocumentImpl, fDocumentIndex, fDocumentType, fDocumentTypeIndex, fFirstChunk, fInCDATASection, fIncludeComments, fIncludeIgnorableWhitespace, fInDocument, fInDTD, fInDTDExternalSubset, fInternalSubset, fNamespaceAware, fNormalizeData, fStringBuffer, INCLUDE_COMMENTS_FEATURE, INCLUDE_IGNORABLE_WHITESPACE, NORMALIZE_DATA
 
Fields inherited from class org.apache.xerces.parsers.XMLParser
ENTITY_RESOLVER, ERROR_HANDLER, fConfiguration
 
Fields inherited from interface org.w3c.dom.ls.DOMBuilder
ACTION_APPEND_AS_CHILDREN, ACTION_INSERT_AFTER, ACTION_INSERT_BEFORE, ACTION_REPLACE
 
Fields inherited from interface org.apache.xerces.xni.XMLDTDHandler
CONDITIONAL_IGNORE, CONDITIONAL_INCLUDE
 
Fields inherited from interface org.apache.xerces.xni.XMLDTDContentModelHandler
OCCURS_ONE_OR_MORE, OCCURS_ZERO_OR_MORE, OCCURS_ZERO_OR_ONE, SEPARATOR_CHOICE, SEPARATOR_SEQUENCE
 
Constructor Summary
DOMBuilderImpl(java.lang.String configuration, java.lang.String schemaType)
          Constructs a DOM Builder using the standard parser configuration.
DOMBuilderImpl(SymbolTable symbolTable)
          Constructs a DOM Builder using the specified symbol table.
DOMBuilderImpl(SymbolTable symbolTable, org.apache.xerces.xni.grammars.XMLGrammarPool grammarPool)
          Constructs a DOM Builder using the specified symbol table and grammar pool.
DOMBuilderImpl(org.apache.xerces.xni.parser.XMLParserConfiguration config)
          Constructs a DOM Builder using the specified parser configuration.
 
Method Summary
 boolean canSetFeature(java.lang.String name, boolean state)
          Query whether setting a feature to a specific value is supported.
 void endDocument(org.apache.xerces.xni.Augmentations augs)
          Overwrite endDocument call to copy some information required for re-validation of DOM tree.
 org.w3c.dom.ls.DOMEntityResolver getEntityResolver()
          If a DOMEntityResolver has been specified, each time a reference to an external entity is encountered the DOMBuilder will pass the public and system IDs to the entity resolver, which can then specify the actual source of the entity.
 org.w3c.dom.DOMErrorHandler getErrorHandler()
          In the event that an error is encountered in the XML document being parsed, the DOMDcoumentBuilder will call back to the errorHandler with the error information.
 boolean getFeature(java.lang.String name)
          Look up the value of a feature.
 org.w3c.dom.ls.DOMBuilderFilter getFilter()
          When the application provides a filter, the parser will call out to the filter at the completion of the construction of each Element node.
protected  void initGrammarPool()
           
 org.w3c.dom.Document parse(org.w3c.dom.ls.DOMInputSource is)
          Parse an XML document from a resource identified by an DOMInputSource.
 org.w3c.dom.Document parseURI(java.lang.String uri)
          Parse an XML document from a location identified by an URI reference.
 void parseWithContext(org.w3c.dom.ls.DOMInputSource is, org.w3c.dom.Node cnode, short action)
          Parse an XML document or fragment from a resource identified by an DOMInputSource and insert the content into an existing document at the position epcified with the contextNode and action arguments.
 void reset()
          Resets the parser state.
 void setEntityResolver(org.w3c.dom.ls.DOMEntityResolver entityResolver)
          If a DOMEntityResolver has been specified, each time a reference to an external entity is encountered the DOMBuilder will pass the public and system IDs to the entity resolver, which can then specify the actual source of the entity.
 void setErrorHandler(org.w3c.dom.DOMErrorHandler errorHandler)
          In the event that an error is encountered in the XML document being parsed, the DOMDcoumentBuilder will call back to the errorHandler with the error information.
 void setFeature(java.lang.String name, boolean state)
          Set the state of a feature.
 void setFilter(org.w3c.dom.ls.DOMBuilderFilter filter)
          When the application provides a filter, the parser will call out to the filter at the completion of the construction of each Element node.
 
Methods inherited from class org.apache.xerces.parsers.AbstractDOMParser
attributeDecl, characters, comment, createAttrNode, createElementNode, doctypeDecl, elementDecl, emptyElement, endAttlist, endCDATA, endConditional, endDTD, endElement, endExternalSubset, endGeneralEntity, endParameterEntity, endPrefixMapping, externalEntityDecl, getDocument, getDocumentClassName, handleBaseURI, handleBaseURI, ignorableWhitespace, ignoredCharacters, internalEntityDecl, notationDecl, processingInstruction, setCharacterData, setDocumentClassName, startAttlist, startCDATA, startConditional, startDocument, startDTD, startElement, startExternalSubset, startGeneralEntity, startParameterEntity, startPrefixMapping, textDecl, unparsedEntityDecl, xmlDecl
 
Methods inherited from class org.apache.xerces.parsers.AbstractXMLDocumentParser
any, element, empty, endContentModel, endGroup, occurrence, pcdata, separator, startContentModel, startGroup
 
Methods inherited from class org.apache.xerces.parsers.XMLParser
parse
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Field Detail

NAMESPACES

protected static final java.lang.String NAMESPACES
Feature identifier: namespaces.

See Also:
Constant Field Values

VALIDATION_FEATURE

protected static final java.lang.String VALIDATION_FEATURE
Feature id: validation.

See Also:
Constant Field Values

XMLSCHEMA

protected static final java.lang.String XMLSCHEMA
XML Schema validation

See Also:
Constant Field Values

DYNAMIC_VALIDATION

protected static final java.lang.String DYNAMIC_VALIDATION
Dynamic validation

See Also:
Constant Field Values

XML_SCHEMA_VALIDATION

protected static final java.lang.String XML_SCHEMA_VALIDATION
See Also:
Constant Field Values

DTD_VALIDATION

protected static final java.lang.String DTD_VALIDATION
See Also:
Constant Field Values

fSchemaType

protected java.lang.String fSchemaType

DEBUG

protected static final boolean DEBUG
See Also:
Constant Field Values
Constructor Detail

DOMBuilderImpl

public DOMBuilderImpl(java.lang.String configuration,
                      java.lang.String schemaType)
Constructs a DOM Builder using the standard parser configuration.


DOMBuilderImpl

public DOMBuilderImpl(org.apache.xerces.xni.parser.XMLParserConfiguration config)
Constructs a DOM Builder using the specified parser configuration.


DOMBuilderImpl

public DOMBuilderImpl(SymbolTable symbolTable)
Constructs a DOM Builder using the specified symbol table.


DOMBuilderImpl

public DOMBuilderImpl(SymbolTable symbolTable,
                      org.apache.xerces.xni.grammars.XMLGrammarPool grammarPool)
Constructs a DOM Builder using the specified symbol table and grammar pool.

Method Detail

reset

public void reset()
Resets the parser state.

Overrides:
reset in class AbstractDOMParser
Throws:
SAXException - Thrown on initialization error.

getEntityResolver

public org.w3c.dom.ls.DOMEntityResolver getEntityResolver()
If a DOMEntityResolver has been specified, each time a reference to an external entity is encountered the DOMBuilder will pass the public and system IDs to the entity resolver, which can then specify the actual source of the entity.

Specified by:
getEntityResolver in interface org.w3c.dom.ls.DOMBuilder

setEntityResolver

public void setEntityResolver(org.w3c.dom.ls.DOMEntityResolver entityResolver)
If a DOMEntityResolver has been specified, each time a reference to an external entity is encountered the DOMBuilder will pass the public and system IDs to the entity resolver, which can then specify the actual source of the entity.

Specified by:
setEntityResolver in interface org.w3c.dom.ls.DOMBuilder

getErrorHandler

public org.w3c.dom.DOMErrorHandler getErrorHandler()
In the event that an error is encountered in the XML document being parsed, the DOMDcoumentBuilder will call back to the errorHandler with the error information. When the document loading process calls the error handler the node closest to where the error occured is passed to the error handler if the implementation, if the implementation is unable to pass the node where the error occures the document Node is passed to the error handler. Mutations to the document from within an error handler will result in implementation dependent behavour.

Specified by:
getErrorHandler in interface org.w3c.dom.ls.DOMBuilder

setErrorHandler

public void setErrorHandler(org.w3c.dom.DOMErrorHandler errorHandler)
In the event that an error is encountered in the XML document being parsed, the DOMDcoumentBuilder will call back to the errorHandler with the error information. When the document loading process calls the error handler the node closest to where the error occured is passed to the error handler if the implementation, if the implementation is unable to pass the node where the error occures the document Node is passed to the error handler. Mutations to the document from within an error handler will result in implementation dependent behavour.

Specified by:
setErrorHandler in interface org.w3c.dom.ls.DOMBuilder

getFilter

public org.w3c.dom.ls.DOMBuilderFilter getFilter()
When the application provides a filter, the parser will call out to the filter at the completion of the construction of each Element node. The filter implementation can choose to remove the element from the document being constructed (unless the element is the document element) or to terminate the parse early. If the document is being validated when it's loaded the validation happens before the filter is called.

Specified by:
getFilter in interface org.w3c.dom.ls.DOMBuilder

setFilter

public void setFilter(org.w3c.dom.ls.DOMBuilderFilter filter)
When the application provides a filter, the parser will call out to the filter at the completion of the construction of each Element node. The filter implementation can choose to remove the element from the document being constructed (unless the element is the document element) or to terminate the parse early. If the document is being validated when it's loaded the validation happens before the filter is called.

Specified by:
setFilter in interface org.w3c.dom.ls.DOMBuilder

setFeature

public void setFeature(java.lang.String name,
                       boolean state)
                throws org.w3c.dom.DOMException
Set the state of a feature.
The feature name has the same form as a DOM hasFeature string.
It is possible for a DOMBuilder to recognize a feature name but to be unable to set its value.

Specified by:
setFeature in interface org.w3c.dom.ls.DOMBuilder
Parameters:
name - The feature name.
state - The requested state of the feature (true or false).
Throws:
org.w3c.dom.DOMException - Raise a NOT_SUPPORTED_ERR exception when the DOMBuilder recognizes the feature name but cannot set the requested value.
Raise a NOT_FOUND_ERR When the DOMBuilder does not recognize the feature name.

canSetFeature

public boolean canSetFeature(java.lang.String name,
                             boolean state)
Query whether setting a feature to a specific value is supported.
The feature name has the same form as a DOM hasFeature string.

Specified by:
canSetFeature in interface org.w3c.dom.ls.DOMBuilder
Parameters:
name - The feature name, which is a DOM has-feature style string.
state - The requested state of the feature (true or false).
Returns:
true if the feature could be successfully set to the specified value, or false if the feature is not recognized or the requested value is not supported. The value of the feature itself is not changed.

getFeature

public boolean getFeature(java.lang.String name)
                   throws org.w3c.dom.DOMException
Look up the value of a feature.
The feature name has the same form as a DOM hasFeature string

Specified by:
getFeature in interface org.w3c.dom.ls.DOMBuilder
Parameters:
name - The feature name, which is a string with DOM has-feature syntax.
Returns:
The current state of the feature (true or false).
Throws:
org.w3c.dom.DOMException - Raise a NOT_FOUND_ERR When the DOMBuilder does not recognize the feature name.

parseURI

public org.w3c.dom.Document parseURI(java.lang.String uri)
Parse an XML document from a location identified by an URI reference. If the URI contains a fragment identifier (see section 4.1 in ), the behavior is not defined by this specification.

Specified by:
parseURI in interface org.w3c.dom.ls.DOMBuilder
Parameters:
uri - The location of the XML document to be read.
Returns:
If the DOMBuilder is a synchronous DOMBuilder the newly created and populated Document is returned. If the DOMBuilder is asynchronous then null is returned since the document object is not yet parsed when this method returns.

parse

public org.w3c.dom.Document parse(org.w3c.dom.ls.DOMInputSource is)
                           throws java.lang.Exception
Parse an XML document from a resource identified by an DOMInputSource.

Specified by:
parse in interface org.w3c.dom.ls.DOMBuilder
Parameters:
is - The DOMInputSource from which the source document is to be read.
Returns:
If the DOMBuilder is a synchronous DOMBuilder the newly created and populated Document is returned. If the DOMBuilder is asynchronous then null is returned since the document object is not yet parsed when this method returns.
java.lang.Exception

initGrammarPool

protected void initGrammarPool()

parseWithContext

public void parseWithContext(org.w3c.dom.ls.DOMInputSource is,
                             org.w3c.dom.Node cnode,
                             short action)
                      throws org.w3c.dom.DOMException
Parse an XML document or fragment from a resource identified by an DOMInputSource and insert the content into an existing document at the position epcified with the contextNode and action arguments. When parsing the input stream the context node is used for resolving unbound namespace prefixes.

Specified by:
parseWithContext in interface org.w3c.dom.ls.DOMBuilder
Parameters:
is - The DOMInputSource from which the source document is to be read.
cnode - The Node that is used as the context for the data that is being parsed.
action - This parameter describes which action should be taken between the new set of node being inserted and the existing children of the context node. The set of possible actions is defined above.
Throws:
org.w3c.dom.DOMException - HIERARCHY_REQUEST_ERR: Thrown if this action results in an invalid hierarchy (i.e. a Document with more than one document element).

endDocument

public void endDocument(org.apache.xerces.xni.Augmentations augs)
                 throws org.apache.xerces.xni.XNIException
Overwrite endDocument call to copy some information required for re-validation of DOM tree.

Specified by:
endDocument in interface org.apache.xerces.xni.XMLDocumentHandler
Overrides:
endDocument in class AbstractDOMParser
Parameters:
augs -
Throws:
org.apache.xerces.xni.XNIException


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