NamePart

java.lang.Object
- net.sf.saxon.expr.Expression
- - net.sf.saxon.expr.FunctionCall
  - - net.sf.saxon.functions.SystemFunction
    - - net.sf.saxon.functions.NamePart

All Implemented Interfaces:

java.io.Serializable, javax.xml.transform.SourceLocator, LocationProvider, SaxonLocator, EvaluableItem, SequenceIterable, InstructionInfo, org.xml.sax.Locator
```
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

Field Summary

Fields
Modifier and Type	Field	Description
`static int`	`DOCUMENT_URI`
`static int`	`GENERATE_ID`
`static int`	`LOCAL_NAME`
`static int`	`NAME`
`static int`	`NAMESPACE_URI`
`static int`	`NODE_NAME`

Fields inherited from class net.sf.saxon.expr.Expression
EVALUATE_METHOD, ITERATE_METHOD, locationId, PROCESS_METHOD, staticProperties

Fields inherited from class net.sf.saxon.expr.FunctionCall
argument

Fields inherited from class net.sf.saxon.functions.SystemFunction
operation

Constructor Summary

Constructors
Constructor Description

NamePart()

Constructors
Constructor	Description
`NamePart()`

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int`	`computeSpecialProperties()`	Determine the special properties of this expression.
`Item`	`evaluateItem(XPathContext c)`	Evaluate the function in a string context
`static boolean`	`isGenerateIdFunction(Expression exp)`	Test whether an expression is a call on the generate-id() function
`Expression`	`simplify(ExpressionVisitor visitor)`	Simplify and validate.

Methods inherited from class net.sf.saxon.expr.Expression
addToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, display, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, evaluatePendingUpdates, explain, findParentOf, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getExecutable, getHostLanguage, getImplementationMethod, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, getSystemId, hasLoopingSubexpression, implementsStaticTypeCheck, isUpdatingExpression, iterate, iterateEvents, markTailFunctionCalls, process, resetLocalStaticProperties, setContainer, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, typeError

Methods inherited from class net.sf.saxon.expr.FunctionCall
addExternalFunctionCallToPathMap, checkArgumentCount, equals, explain, getArguments, getDisplayName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, preEvaluate, promote, replaceSubExpression, setArguments, setFunctionName, simplifyArguments, toString, typeCheck

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from class net.sf.saxon.functions.SystemFunction
addContextDocumentArgument, addDocToPathMap, checkArguments, computeCardinality, copy, getDetails, getErrorCodeForTypeErrors, getItemType, getRequiredType, makeSystemFunction, optimize, setDetails, useContextItemAsDefault

- Field Detail
  - 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
- Constructor Detail
  - NamePart
```
public NamePart()
```
- Method Detail
  - simplify
```
public Expression simplify(ExpressionVisitor visitor)
                    throws XPathException
```
    Simplify and validate.
    
    Overrides:
    
    simplify in class FunctionCall
    
    Parameters:
    
    visitor - an expression visitor
    
    Returns:
    
    the simplified expression
    
    Throws:
    
    XPathException - if an error is discovered during expression rewriting
  - computeSpecialProperties
```
public int computeSpecialProperties()
```
    Determine the special properties of this expression. The generate-id() function is a special case: it is considered creative if its operand is creative, so that generate-id(f()) is not taken out of a loop
    
    Overrides:
    
    computeSpecialProperties in class SystemFunction
    
    Returns:
    
    the special properties, as a bit-significant integer
  - evaluateItem
```
public Item evaluateItem(XPathContext c)
                  throws XPathException
```
    Evaluate the function in a string context
    
    Specified by:
    
    evaluateItem in interface EvaluableItem
    
    Overrides:
    
    evaluateItem in class Expression
    
    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

Class NamePart

Field Summary

Fields inherited from class net.sf.saxon.expr.Expression

Fields inherited from class net.sf.saxon.expr.FunctionCall

Fields inherited from class net.sf.saxon.functions.SystemFunction

Constructor Summary

Method Summary

Methods inherited from class net.sf.saxon.expr.Expression

Methods inherited from class net.sf.saxon.expr.FunctionCall

Methods inherited from class java.lang.Object

Methods inherited from class net.sf.saxon.functions.SystemFunction

Field Detail

NAME

LOCAL_NAME

NAMESPACE_URI

GENERATE_ID

DOCUMENT_URI

NODE_NAME

Constructor Detail

NamePart

Method Detail

simplify

computeSpecialProperties

evaluateItem

isGenerateIdFunction