Package org.jaxen.expr

Class DefaultVariableReferenceExpr

java.lang.Object

org.jaxen.expr.DefaultExpr

org.jaxen.expr.DefaultVariableReferenceExpr

All Implemented Interfaces:

java.io.Serializable, Expr, VariableReferenceExpr

class DefaultVariableReferenceExpr
extends DefaultExpr
implements VariableReferenceExpr

Field Summary

Fields

Modifier and Type	Field	Description
private java.lang.String	localName
private java.lang.String	prefix
private static long	serialVersionUID

Constructor Summary

Constructors

Constructor	Description
DefaultVariableReferenceExpr(java.lang.String prefix, java.lang.String variableName)

Method Summary

Modifier and Type	Method	Description
java.lang.Object	evaluate(Context context)	Evaluate the expression in the given context, and return the result.
java.lang.String	getPrefix()	Returns the namespace prefix of the variable.
private java.lang.String	getQName()
java.lang.String	getText()	Returns a String containing the XPath expression.
java.lang.String	getVariableName()	Returns the local name of the variable.
java.lang.String	toString()

Methods inherited from class org.jaxen.expr.DefaultExpr

convertToIterator, convertToList, simplify

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.jaxen.expr.Expr

simplify

Field Detail

serialVersionUID

private static final long serialVersionUID

See Also:

Constant Field Values

prefix

private java.lang.String prefix

localName

private java.lang.String localName

Constructor Detail

DefaultVariableReferenceExpr

DefaultVariableReferenceExpr(java.lang.String prefix,
                             java.lang.String variableName)

Method Detail

getPrefix

public java.lang.String getPrefix()

Description copied from interface: VariableReferenceExpr

Returns the namespace prefix of the variable. This is the empty string for variables with no namespace prefix.

Specified by:

getPrefix in interface VariableReferenceExpr

Returns:

the namespace prefix of the variable

getVariableName

public java.lang.String getVariableName()

Description copied from interface: VariableReferenceExpr

Returns the local name of the variable.

Specified by:

getVariableName in interface VariableReferenceExpr

Returns:

the local name of the variable

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

getQName

private java.lang.String getQName()

getText

public java.lang.String getText()

Description copied from interface: Expr

Returns a String containing the XPath expression.

Specified by:

getText in interface Expr

Returns:

the text form of this XPath expression

evaluate

public java.lang.Object evaluate(Context context)
                          throws UnresolvableException

Description copied from interface: Expr

Evaluate the expression in the given context, and return the result. The result will be a java.lang.Double for expressions that return a number, a java.lang.String for expressions that return a string, a java.lang.Boolean for expressions that return a boolean, and a java.util.List for expressions that return a node-set. In the latter case, the elements of the list are the actual objects from the source document model. Copies are not made.

Specified by:

evaluate in interface Expr

Parameters:

context - the context in which the expression is evaluated

Returns:

an object representing the result of the evaluation

Throws:

UnresolvableException