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java.lang.Objectcom.caucho.xpath.pattern.AbstractPattern
com.caucho.xpath.pattern.FromPrevious
public class FromPrevious
Matches nodes preceding the current node, not counting descendants.
Field Summary |
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Fields inherited from class com.caucho.xpath.pattern.AbstractPattern |
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_child, _parent, log, XMLNS |
Constructor Summary | |
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FromPrevious(AbstractPattern parent)
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Method Summary | |
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AbstractPattern |
copyAxis()
Returns the node itself for the axis. |
AbstractPattern |
copyPosition()
Returns null since the axis isn't part of the position pattern. |
int |
count(org.w3c.dom.Node node,
Env env,
AbstractPattern pattern)
counts matching nodes preceding the axis context. |
NodeIterator |
createNodeIterator(org.w3c.dom.Node node,
ExprEnvironment env,
AbstractPattern match)
Creates a new node iterator. |
org.w3c.dom.Node |
firstNode(org.w3c.dom.Node node,
ExprEnvironment env)
Returns the first node in the selection order. |
boolean |
isAscending()
The iterator is in reverse document order. |
boolean |
isStrictlyAscending()
Returns true if the pattern is strictly ascending. |
boolean |
isUnique()
Returns true if the pattern is strictly ascending. |
org.w3c.dom.Node |
lastNode(org.w3c.dom.Node node)
Returns the last node in the selection order. |
boolean |
match(org.w3c.dom.Node node,
ExprEnvironment env)
matches if we can find a following node matching the parent pattern. |
org.w3c.dom.Node |
nextNode(org.w3c.dom.Node node,
org.w3c.dom.Node lastNode)
Returns the next node in the selection order. |
int |
position(org.w3c.dom.Node node,
Env env,
AbstractPattern pattern)
Calculates position by counting next nodes matching the pattern. |
java.lang.String |
toString()
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Methods inherited from class com.caucho.xpath.pattern.AbstractPattern |
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findAny, getNodeName, getParent, getPrefix, getPriority, select, selectUnique, toPatternString |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public FromPrevious(AbstractPattern parent)
Method Detail |
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public boolean match(org.w3c.dom.Node node, ExprEnvironment env) throws XPathException
match
in class AbstractPattern
node
- the node to testenv
- the variable environment.
XPathException
public boolean isAscending()
isAscending
in class AbstractPattern
public int position(org.w3c.dom.Node node, Env env, AbstractPattern pattern) throws XPathException
node
- the current nodeenv
- the variable environmentpattern
- the position pattern
XPathException
public int count(org.w3c.dom.Node node, Env env, AbstractPattern pattern) throws XPathException
node
- the current nodeenv
- the variable environmentpattern
- the position pattern
XPathException
public boolean isUnique()
public org.w3c.dom.Node firstNode(org.w3c.dom.Node node, ExprEnvironment env)
firstNode
in class AbstractPattern
node
- the current node
public org.w3c.dom.Node nextNode(org.w3c.dom.Node node, org.w3c.dom.Node lastNode)
nextNode
in class AbstractPattern
node
- the current nodelastNode
- the original node (for checking ancestors)
public org.w3c.dom.Node lastNode(org.w3c.dom.Node node)
lastNode
in class AbstractPattern
node
- the current node
public java.lang.String toString()
toString
in class java.lang.Object
public NodeIterator createNodeIterator(org.w3c.dom.Node node, ExprEnvironment env, AbstractPattern match) throws XPathException
createNodeIterator
in class AbstractPattern
node
- the starting nodeenv
- the variable environmentmatch
- the axis match pattern
XPathException
public AbstractPattern copyAxis()
copyAxis
in class AbstractPattern
public AbstractPattern copyPosition()
copyPosition
in class AbstractPattern
public boolean isStrictlyAscending()
isStrictlyAscending
in class AbstractPattern
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