Package net.sf.saxon.dom
Class DOMObjectModel
java.lang.Object
net.sf.saxon.om.TreeModel
net.sf.saxon.dom.DOMObjectModel
- All Implemented Interfaces:
Serializable
,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.
- See Also:
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Field Summary
Fields inherited from class net.sf.saxon.om.TreeModel
LINKED_TREE, TINY_TREE, TINY_TREE_CONDENSED
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionconvertXPathValueToObject
(ValueRepresentation<T> value, Class target) Convert an XPath value to an object in this object model.copy
(Node node, TreeModel model, Configuration config) Copy a DOM node to create a node in a different tree modelgetDocumentBuilder
(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.Get the URI of the external object model as used in the JAXP factory interfaces for obtaining an XPath implementationstatic DOMObjectModel
Get a reusable instance instance of this class.getJPConverter
(Class sourceClass) Get a converter from values in the external object model to XPath values.getNodeListCreator
(Object node) Get a converter that converts a sequence of XPath nodes to this model's representation of a node list.getPJConverter
(Class targetClass) Get a converter from XPath values to values in the external object modelMake a Builder to construct an instance of this tree model from a stream of eventsboolean
sendSource
(Source source, Receiver receiver) Test whether this object model recognizes a particular kind of JAXP Source object, and if it does, send the contents of the document to a supplied Receiver, and return true.unravel
(Source source, Configuration config) Wrap or unwrap a node using this object model to return the corresponding Saxon node.wrap
(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
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Constructor Details
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DOMObjectModel
public DOMObjectModel()Create an instance of the DOMObjectModel class.When possible, use the getInstance() method in preference, as the instance is then reusable.
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Method Details
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getInstance
Get a reusable instance 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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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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getPJConverter
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
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 converted- Returns:
- a converter, if the sourceClass is recognized as belonging to this object model; otherwise null
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getNodeListCreator
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
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, return null.- Specified by:
getDocumentBuilder
in interfaceExternalObjectModel
- Parameters:
result
- a JAXP result object- Returns:
- a Receiver that writes to that result, if available; or null otherwise
- Throws:
XPathException
- if any failure occurs
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makeBuilder
Description copied from class:TreeModel
Make a Builder to construct an instance of this tree model from a stream of events- Specified by:
makeBuilder
in classTreeModel
- Returns:
- a newly created Builder @param pipe
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sendSource
Test whether this object model recognizes a particular kind of JAXP Source object, and if it does, send the contents of the document to a supplied Receiver, and return true. Otherwise, return false- Specified by:
sendSource
in interfaceExternalObjectModel
- Parameters:
source
- a JAXP Source objectreceiver
- the Receiver that is to receive the data from the Source- Returns:
- true if the data from the Source has been sent to the Receiver, false otherwise
- Throws:
XPathException
- if any failure occurs
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wrap
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
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
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 <T extends Item> Object convertXPathValueToObject(ValueRepresentation<T> value, 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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