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Summary: Nested | Field | Method | Constr | Detail: Nested | Field | Method | Constr |
java.lang.Object
com.icl.saxon.expr.Expression
com.icl.saxon.expr.Function
com.icl.saxon.functions.Current
public class Current
extends Function
Field Summary |
Fields inherited from class com.icl.saxon.expr.Expression | |
staticContext |
Method Summary | |
Value | |
NodeSetValue |
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int |
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int |
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String |
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boolean |
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Expression | |
Expression |
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Methods inherited from class com.icl.saxon.expr.Function | |
addArgument , checkArgumentCount , display , getName , getNumberOfArguments |
Methods inherited from class com.icl.saxon.expr.Expression | |
containsReferences , display , enumerate , evaluate , evaluateAsBoolean , evaluateAsNodeSet , evaluateAsNumber , evaluateAsString , getDataType , getDependencies , getStaticContext , indent , isContextDocumentNodeSet , make , outputStringValue , reduce , setStaticContext , simplify , usesCurrent |
public Value evaluate(Context c) throws XPathException
Evaluate in a general context
- Overrides:
- evaluate in interface Expression
public NodeSetValue evaluateAsNodeSet(Context c) throws XPathException
Evaluate the function in a node-set context
- Overrides:
- evaluateAsNodeSet in interface Expression
public int getDataType()
Determine the data type of the expression
- Overrides:
- getDataType in interface Expression
- Returns:
- Value.NODESET
public int getDependencies()
Determine the dependencies
- Overrides:
- getDependencies in interface Expression
public String getName()
Function name (for diagnostics)
- Overrides:
- getName in interface Function
public boolean isContextDocumentNodeSet()
Determine, in the case of an expression whose data type is Value.NODESET, whether all the nodes in the node-set are guaranteed to come from the same document as the context node. Used for optimization.
- Overrides:
- isContextDocumentNodeSet in interface Expression
public Expression reduce(int dep, Context c) throws XPathException
Reduce the dependencies
- Overrides:
- reduce in interface Expression
public Expression simplify() throws XPathException
Simplify and validate.
- Overrides:
- simplify in interface Expression