Package org.exolab.adaptx.xpath.engine
Class SelectExpr
java.lang.Object
org.exolab.adaptx.xpath.engine.SelectExpr
- All Implemented Interfaces:
XPathExpression
This class represents a SelectExpr
[1] SelectExpr ::= UnionExpr
- Version:
- $Revision: 3737 $ $Date: 2003-05-13 09:59:57 +0200 (Tue, 13 May 2003) $
- Author:
- Keith Visco
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Field Summary
Fields inherited from interface org.exolab.adaptx.xpath.XPathExpression
BOOLEAN, ERROR, FILTER_EXPR, LOCATION_PATH, NODE_TEST, NUMBER, PATH_EXPR, PRIMARY, STEP, STRING, UNION_EXPR
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionevaluate
(XPathContext context) Evaluates the expression and returns the XPath result.short
Returns the type of this expression.toString()
Returns the XPath expression as a string.
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Constructor Details
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SelectExpr
public SelectExpr()Creates a new SelectExpr. This SelectExpr will select the empty node set by default.
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Method Details
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toString
Description copied from interface:XPathExpression
Returns the XPath expression as a string. The returned value is a valid XPath expression that can be parsed into an equivalentXPathExpression
object.- Specified by:
toString
in interfaceXPathExpression
- Overrides:
toString
in classObject
- Returns:
- The XPath expression as a string
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getExprType
public short getExprType()Description copied from interface:XPathExpression
Returns the type of this expression.- Specified by:
getExprType
in interfaceXPathExpression
- Returns:
- The type of this expression
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evaluate
Evaluates the expression and returns the XPath result.- Specified by:
evaluate
in interfaceXPathExpression
- Parameters:
context
- The XPathContext to use during evaluation.- Returns:
- The XPathResult (not null).
- Throws:
XPathException
- if an error occured while evaluating this expression.
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getUnionExpr
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