Package net.sf.saxon.tree.wrapper
Class SpaceStrippedNode
- java.lang.Object
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- net.sf.saxon.tree.wrapper.AbstractVirtualNode
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- net.sf.saxon.tree.wrapper.SpaceStrippedNode
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- All Implemented Interfaces:
javax.xml.transform.Source
,PullEvent
,Item<NodeInfo>
,NodeInfo
,ValueRepresentation<NodeInfo>
,VirtualNode
,WrappingFunction
- Direct Known Subclasses:
SpaceStrippedDocument
public class SpaceStrippedNode extends AbstractVirtualNode implements WrappingFunction
A StrippedNode is a view of a node, in a virtual tree that has whitespace text nodes stripped from it. All operations on the node produce the same result as operations on the real underlying node, except that iterations over the axes take care to skip whitespace-only text nodes that are supposed to be stripped. Note that this class is only used in cases where a pre-built tree is supplied as the input to a transformation, and where the stylesheet does whitespace stripping; if a SAXSource or StreamSource is supplied, whitespace is stripped as the tree is built.
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Field Summary
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Fields inherited from class net.sf.saxon.tree.wrapper.AbstractVirtualNode
docWrapper, node, parent
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Fields inherited from interface net.sf.saxon.om.NodeInfo
ALL_NAMESPACES, IS_DTD_TYPE, IS_NILLED, LOCAL_NAMESPACES, NO_NAMESPACES
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Fields inherited from interface net.sf.saxon.om.ValueRepresentation
EMPTY_VALUE_ARRAY
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Constructor Summary
Constructors Modifier Constructor Description protected
SpaceStrippedNode()
protected
SpaceStrippedNode(NodeInfo node, SpaceStrippedNode parent)
This constructor is protected: nodes should be created using the makeWrapper factory method
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description Value
atomize()
Get the typed value.int
compareOrder(NodeInfo other)
Determine the relative position of this node and another node, in document order.void
copy(Receiver out, int copyOptions, int locationId)
Copy this node to a given outputter (deep copy)NodeInfo
getParent()
Get the NodeInfo object representing the parent of this nodejava.lang.CharSequence
getStringValueCS()
Get the value of the item as a CharSequence.boolean
isSameNodeInfo(NodeInfo other)
Determine whether this is the same node as another node.AxisIterator
iterateAxis(byte axisNumber)
Return an iteration over the nodes reached by the given axis from this nodeprotected static SpaceStrippedNode
makeWrapper(NodeInfo node, SpaceStrippedDocument docWrapper, SpaceStrippedNode parent)
Factory method to wrap a node with a wrapper that implements the Saxon NodeInfo interface.VirtualNode
makeWrapper(NodeInfo node, VirtualNode parent)
Factory method to wrap a node within the same document as this node with a VirtualNode-
Methods inherited from class net.sf.saxon.tree.wrapper.AbstractVirtualNode
equals, generateId, getAttributeValue, getAttributeValue, getBaseURI, getColumnNumber, getConfiguration, getDeclaredNamespaces, getDisplayName, getDocumentNumber, getDocumentRoot, getFingerprint, getLineNumber, getLocalPart, getNameCode, getNamePool, getNodeKind, getPrefix, getRealNode, getRoot, getSchemaType, getStringValue, getSystemId, getTypeAnnotation, getTypedValue, getUnderlyingNode, getURI, hasChildNodes, hashCode, isId, isIdref, isNilled, iterateAxis, setSystemId
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Constructor Detail
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SpaceStrippedNode
protected SpaceStrippedNode()
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SpaceStrippedNode
protected SpaceStrippedNode(NodeInfo node, SpaceStrippedNode parent)
This constructor is protected: nodes should be created using the makeWrapper factory method- Parameters:
node
- The node to be wrappedparent
- The StrippedNode that wraps the parent of this node
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Method Detail
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makeWrapper
protected static SpaceStrippedNode makeWrapper(NodeInfo node, SpaceStrippedDocument docWrapper, SpaceStrippedNode parent)
Factory method to wrap a node with a wrapper that implements the Saxon NodeInfo interface.- Parameters:
node
- The underlying nodedocWrapper
- The wrapper for the document node (must be supplied)parent
- The wrapper for the parent of the node (null if unknown)- Returns:
- The new wrapper for the supplied node
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makeWrapper
public VirtualNode makeWrapper(NodeInfo node, VirtualNode parent)
Factory method to wrap a node within the same document as this node with a VirtualNode- Specified by:
makeWrapper
in interfaceWrappingFunction
- Parameters:
node
- The underlying nodeparent
- The wrapper for the parent of the node (null if unknown)- Returns:
- The new wrapper for the supplied node
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atomize
public Value atomize() throws XPathException
Get the typed value. The result of this method will always be consistent with the methodItem.getTypedValue()
. However, this method is often more convenient and may be more efficient, especially in the common case where the value is expected to be a singleton.- Specified by:
atomize
in interfaceNodeInfo
- Overrides:
atomize
in classAbstractVirtualNode
- Returns:
- the typed value.
- Throws:
XPathException
- if the node has no typed value, for example if it is an element node with element-only content- Since:
- 8.5
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isSameNodeInfo
public boolean isSameNodeInfo(NodeInfo other)
Determine whether this is the same node as another node.
Note: a.isSameNode(b) if and only if generateId(a)==generateId(b)- Specified by:
isSameNodeInfo
in interfaceNodeInfo
- Overrides:
isSameNodeInfo
in classAbstractVirtualNode
- Parameters:
other
- the node to be compared with this node- Returns:
- true if this Node object and the supplied Node object represent the same node in the tree.
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compareOrder
public int compareOrder(NodeInfo other)
Determine the relative position of this node and another node, in document order. The other node will always be in the same document.- Specified by:
compareOrder
in interfaceNodeInfo
- Overrides:
compareOrder
in classAbstractVirtualNode
- Parameters:
other
- The other node, whose position is to be compared with this node- Returns:
- -1 if this node precedes the other node, +1 if it follows the other node, or 0 if they are the same node. (In this case, isSameNode() will always return true, and the two nodes will produce the same result for generateId())
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getStringValueCS
public java.lang.CharSequence getStringValueCS()
Get the value of the item as a CharSequence. This is in some cases more efficient than the version of the method that returns a String.- Specified by:
getStringValueCS
in interfaceItem<NodeInfo>
- Specified by:
getStringValueCS
in interfaceValueRepresentation<NodeInfo>
- Overrides:
getStringValueCS
in classAbstractVirtualNode
- Returns:
- the string value of the item
- See Also:
Item.getStringValue()
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getParent
public NodeInfo getParent()
Get the NodeInfo object representing the parent of this node
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iterateAxis
public AxisIterator iterateAxis(byte axisNumber)
Return an iteration over the nodes reached by the given axis from this node- Specified by:
iterateAxis
in interfaceNodeInfo
- Parameters:
axisNumber
- the axis to be used- Returns:
- a SequenceIterator that scans the nodes reached by the axis in turn.
- See Also:
Axis
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copy
public void copy(Receiver out, int copyOptions, int locationId) throws XPathException
Copy this node to a given outputter (deep copy)- Specified by:
copy
in interfaceNodeInfo
- Parameters:
out
- the Receiver to which the node should be copied. It is the caller's responsibility to ensure that this Receiver is open before the method is called (or that it is self-opening), and that it is closed after use.copyOptions
- a selection of the options defined inCopyOptions
locationId
- If non-zero, identifies the location of the instruction that requested this copy. If zero, indicates that the location information- Throws:
XPathException
- if any downstream error occurs
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