Package net.sf.saxon.dom
Class DOMObjectModel
- java.lang.Object
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- net.sf.saxon.om.TreeModel
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- net.sf.saxon.dom.DOMObjectModel
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- All Implemented Interfaces:
ExternalObjectModel
public class DOMObjectModel extends TreeModel implements ExternalObjectModel
This interface must be implemented by any third-party object model that can be wrapped with a wrapper that implements the Saxon Object Model (the NodeInfo interface). This implementation of the interface supports wrapping of DOM Documents.
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Field Summary
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Fields inherited from class net.sf.saxon.om.TreeModel
LINKED_TREE, TINY_TREE, TINY_TREE_CONDENSED
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Constructor Summary
Constructors Constructor Description DOMObjectModel()
Create an instance of the DOMObjectModel class.
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description static java.lang.Object
convertXPathValueToObject(Sequence value, java.lang.Class<?> target)
Convert an XPath value to an object in this object model.NodeInfo
copy(org.w3c.dom.Node node, TreeModel model, Configuration config)
Copy a DOM node to create a node in a different tree modelActiveSource
getActiveSource(javax.xml.transform.Source supplied)
Give this ExternalObjectModel the opportunity of recognising a Source object and returning an ActiveSource, which will be used to send an instance of this external model to a supplied Receiver.Receiver
getDocumentBuilder(javax.xml.transform.Result result)
Test whether this object model recognizes a particular kind of JAXP Result object, and if it does, return a Receiver that builds an instance of this data model from a sequence of events.java.lang.String
getDocumentClassName()
Get the name of a characteristic class, which, if it can be loaded, indicates that the supporting libraries for this object model implementation are available on the classpathjava.lang.String
getIdentifyingURI()
Get the URI of the external object model as used in the JAXP factory interfaces for obtaining an XPath implementationstatic DOMObjectModel
getInstance()
Get a reusable instance of this class.JPConverter
getJPConverter(java.lang.Class sourceClass, Configuration config)
Get a converter from values in the external object model to XPath values.java.lang.String
getName()
Get a name that identifies the tree modelPJConverter
getNodeListCreator(java.lang.Object node)
Get a converter that converts a sequence of XPath nodes to this model's representation of a node list.PJConverter
getPJConverter(java.lang.Class<?> targetClass)
Get a converter from XPath values to values in the external object modelBuilder
makeBuilder(PipelineConfiguration pipe)
Make a Builder, which can then be used to construct an instance of this tree model from a stream of eventsstatic void
sendDOMSource(javax.xml.transform.dom.DOMSource source, Receiver receiver)
NodeInfo
unravel(javax.xml.transform.Source source, Configuration config)
Wrap or unwrap a node using this object model to return the corresponding Saxon node.NodeInfo
wrap(org.w3c.dom.Node node, Configuration config)
Wrap a DOM node using this object model to return the corresponding Saxon node.-
Methods inherited from class net.sf.saxon.om.TreeModel
getSymbolicValue, getTreeModel, isMutable, isSchemaAware
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Method Detail
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getInstance
public static DOMObjectModel getInstance()
Get a reusable instance of this class.Note, this is not actually a singleton instance; the class also has a public constructor, which is needed to support the automatic loading of object models into the Configuration.
- Returns:
- the singleton instance
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getDocumentClassName
public java.lang.String getDocumentClassName()
Get the name of a characteristic class, which, if it can be loaded, indicates that the supporting libraries for this object model implementation are available on the classpath- Specified by:
getDocumentClassName
in interfaceExternalObjectModel
- Returns:
- by convention (but not necessarily) the class that implements a document node in the relevant external model
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getIdentifyingURI
public java.lang.String getIdentifyingURI()
Get the URI of the external object model as used in the JAXP factory interfaces for obtaining an XPath implementation- Specified by:
getIdentifyingURI
in interfaceExternalObjectModel
- Returns:
- the URI used to identify this object model in the JAXP XPath factory mechanism.
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getName
public java.lang.String getName()
Description copied from class:TreeModel
Get a name that identifies the tree model
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getPJConverter
public PJConverter getPJConverter(java.lang.Class<?> targetClass)
Get a converter from XPath values to values in the external object model- Specified by:
getPJConverter
in interfaceExternalObjectModel
- Parameters:
targetClass
- the required class of the result of the conversion. If this class represents a node or list of nodes in the external object model, the method should return a converter that takes a native node or sequence of nodes as input and returns a node or sequence of nodes in the external object model representation. Otherwise, it should return null.- Returns:
- a converter, if the targetClass is recognized as belonging to this object model; otherwise null
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getJPConverter
public JPConverter getJPConverter(java.lang.Class sourceClass, Configuration config)
Description copied from interface:ExternalObjectModel
Get a converter from values in the external object model to XPath values.- Specified by:
getJPConverter
in interfaceExternalObjectModel
- Parameters:
sourceClass
- the class (static or dynamic) of values to be convertedconfig
- the Saxon Configuration object- Returns:
- a converter, if the sourceClass is recognized as belonging to this object model; otherwise null
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getNodeListCreator
public PJConverter getNodeListCreator(java.lang.Object node)
Get a converter that converts a sequence of XPath nodes to this model's representation of a node list.- Specified by:
getNodeListCreator
in interfaceExternalObjectModel
- Parameters:
node
- an example of the kind of node used in this model- Returns:
- if the model does not recognize this node as one of its own, return null. Otherwise return a PJConverter that takes a list of XPath nodes (represented as NodeInfo objects) and returns a collection of nodes in this object model
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getDocumentBuilder
public Receiver getDocumentBuilder(javax.xml.transform.Result result) throws XPathException
Test whether this object model recognizes a particular kind of JAXP Result object, and if it does, return a Receiver that builds an instance of this data model from a sequence of events. If the Result is not recognised, or is not aDOMResult
, return null.- Specified by:
getDocumentBuilder
in interfaceExternalObjectModel
- Parameters:
result
- a JAXP result object- Returns:
- either a Receiver that can be used to build a DOM instance, or null
- Throws:
XPathException
- if any failure occurs
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makeBuilder
public Builder makeBuilder(PipelineConfiguration pipe)
Description copied from class:TreeModel
Make a Builder, which can then be used to construct an instance of this tree model from a stream of events- Specified by:
makeBuilder
in classTreeModel
- Parameters:
pipe
- A PipelineConfiguration, which can be constructed using the methodConfiguration.makePipelineConfiguration()
.- Returns:
- a newly created Builder
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getActiveSource
public ActiveSource getActiveSource(javax.xml.transform.Source supplied)
Give this ExternalObjectModel the opportunity of recognising a Source object and returning an ActiveSource, which will be used to send an instance of this external model to a supplied Receiver. The default implementation returns null.- Specified by:
getActiveSource
in interfaceExternalObjectModel
- Parameters:
supplied
- a supplied Source- Returns:
- an ActiveSource object if the source is recognised, or null if not
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sendDOMSource
public static void sendDOMSource(javax.xml.transform.dom.DOMSource source, Receiver receiver) throws XPathException
- Throws:
XPathException
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wrap
public NodeInfo wrap(org.w3c.dom.Node node, Configuration config)
Wrap a DOM node using this object model to return the corresponding Saxon node.- Parameters:
node
- the DOM node to be wrappedconfig
- the Saxon Configuration- Returns:
- the wrapped DOM node
- Since:
- 9.2
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copy
public NodeInfo copy(org.w3c.dom.Node node, TreeModel model, Configuration config) throws XPathException
Copy a DOM node to create a node in a different tree model- Parameters:
node
- the DOM node to be copiedmodel
- the target tree modelconfig
- the Saxon Configuration- Returns:
- the copied node
- Throws:
XPathException
- if the operation fails- Since:
- 9.2
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unravel
public NodeInfo unravel(javax.xml.transform.Source source, Configuration config)
Wrap or unwrap a node using this object model to return the corresponding Saxon node. If the supplied source does not belong to this object model, return null- Specified by:
unravel
in interfaceExternalObjectModel
- Parameters:
source
- a JAXP Source objectconfig
- the Saxon configuration- Returns:
- a NodeInfo corresponding to the Source, if this can be constructed; otherwise null
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convertXPathValueToObject
public static java.lang.Object convertXPathValueToObject(Sequence value, java.lang.Class<?> target) throws XPathException
Convert an XPath value to an object in this object model. If the supplied value can be converted to an object in this model, of the specified class, then the conversion should be done and the resulting object returned. If the value cannot be converted, the method should return null. Note that the supplied class might be a List, in which case the method should inspect the contents of the Value to see whether they belong to this object model.- Parameters:
value
- the XPath value to be convertedtarget
- the class of object required- Returns:
- the result of the conversion
- Throws:
XPathException
- if the target class is explicitly associated with this object model, but the supplied value cannot be converted to the appropriate class
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