net.sf.saxon.functions
Class NamePart
java.lang.Object
|
+--net.sf.saxon.expr.ComputedExpression
|
+--net.sf.saxon.expr.FunctionCall
|
+--net.sf.saxon.functions.SystemFunction
|
+--net.sf.saxon.functions.NamePart
- All Implemented Interfaces:
- Container, Expression, InstructionInfoProvider, java.io.Serializable, javax.xml.transform.SourceLocator
- public class NamePart
- extends SystemFunction
This class supports the name(), local-name(), and namespace-uri() functions
from XPath 1.0, and also the XSLT generate-id() function
- See Also:
- Serialized Form
Methods inherited from class net.sf.saxon.functions.SystemFunction |
addContextDocumentArgument, checkArguments, computeCardinality, display, getDetails, getItemType, getRequiredType, main, makeSystemFunction, setDetails, useContextItemAsDefault |
Methods inherited from class net.sf.saxon.expr.FunctionCall |
analyze, checkArgumentCount, getDisplayName, getFunctionNameCode, getNumberOfArguments, iterateSubExpressions, preEvaluate, promote, setArguments, setFunctionNameCode, simplifyArguments |
Methods inherited from class net.sf.saxon.expr.ComputedExpression |
adoptChildExpression, computeDependencies, computeSpecialProperties, computeStaticProperties, dynamicError, dynamicError, effectiveBooleanValue, evaluateAsString, getCardinality, getColumnNumber, getConstructType, getDependencies, getExecutable, getImplementationMethod, getInstructionInfo, getIntrinsicDependencies, getLineNumber, getLocationId, getParentExpression, getPublicId, getSpecialProperties, getSystemId, iterate, markTailFunctionCalls, process, resetStaticProperties, setLocationId, setParentExpression, typeError |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
NAME
public static final int NAME
- See Also:
- Constant Field Values
LOCAL_NAME
public static final int LOCAL_NAME
- See Also:
- Constant Field Values
NAMESPACE_URI
public static final int NAMESPACE_URI
- See Also:
- Constant Field Values
GENERATE_ID
public static final int GENERATE_ID
- See Also:
- Constant Field Values
DOCUMENT_URI
public static final int DOCUMENT_URI
- See Also:
- Constant Field Values
NODE_NAME
public static final int NODE_NAME
- See Also:
- Constant Field Values
NamePart
public NamePart()
simplify
public Expression simplify(StaticContext env)
throws XPathException
- Simplify and validate.
- Specified by:
simplify
in interface Expression
- Overrides:
simplify
in class FunctionCall
- Returns:
- the simplified expression
- Throws:
XPathException
- if an error is discovered during expression
rewriting
evaluateItem
public Item evaluateItem(XPathContext c)
throws XPathException
- Evaluate the function in a string context
- Specified by:
evaluateItem
in interface Expression
- Overrides:
evaluateItem
in class ComputedExpression
- Parameters:
c
- The context in which the expression is to be evaluated
- Returns:
- the node or atomic value that results from evaluating the
expression; or null to indicate that the result is an empty
sequence
- Throws:
XPathException
- if any dynamic error occurs evaluating the
expression
isGenerateIdFunction
public static boolean isGenerateIdFunction(Expression exp)
- Test whether an expression is a call on the generate-id() function
- Parameters:
exp
- the expression to be tested
- Returns:
- true if exp is a call on generate-id(), else false