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java.lang.Objectcom.icl.saxon.expr.Expression
com.icl.saxon.expr.NodeSetComparison
NodeSetComparison: A Relational Expression that compares a node-set with a string or numeric value for equals, not-equals, greater-than or less-than.
| Field Summary |
| Fields inherited from class com.icl.saxon.expr.Expression |
staticContext |
| Constructor Summary | |
NodeSetComparison(NodeSetExpression p1,
int op,
Value p2)
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| Method Summary | |
void |
display(int level)
Diagnostic print of expression structure |
Value |
evaluate(Context c)
Evaluate the expression in a given context |
boolean |
evaluateAsBoolean(Context c)
Evaluate the expression in a given context |
int |
getDataType()
Determine the data type of the expression, if possible |
int |
getDependencies()
Determine which aspects of the context the expression depends on. |
Expression |
reduce(int dependencies,
Context context)
Perform a partial evaluation of the expression, by eliminating specified dependencies on the context. |
Expression |
simplify()
Simplify an expression |
| Methods inherited from class com.icl.saxon.expr.Expression |
containsReferences, enumerate, evaluateAsNodeSet, evaluateAsNumber, evaluateAsString, getStaticContext, indent, isContextDocumentNodeSet, make, outputStringValue, setStaticContext, usesCurrent |
| Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Constructor Detail |
public NodeSetComparison(NodeSetExpression p1,
int op,
Value p2)
| Method Detail |
public Expression simplify()
simplify in class Expression
public Value evaluate(Context c)
throws XPathException
evaluate in class Expressionc - the given context for evaluation
XPathException
public boolean evaluateAsBoolean(Context c)
throws XPathException
evaluateAsBoolean in class Expressionc - the given context for evaluation
XPathExceptionpublic int getDataType()
getDataType in class Expressionpublic int getDependencies()
getDependencies in class Expression
public Expression reduce(int dependencies,
Context context)
throws XPathException
reduce in class Expressiondependencies - The dependencies to be removedcontext - The context to be used for the partial evaluation
XPathExceptionpublic void display(int level)
display in class Expression
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