org.jbind.xml.core.bridge
Interface IXPath

All Known Implementing Classes:

XPath

public interface IXPath

Method Summary

java.lang.String	asString()
double	number(IDataImpl aData)
java.util.Iterator	select(IDataImpl aContext) Selects the data objects.
boolean	selectsZeroOrOneNode() Indicates that the XPath selects always 0 or 1 node.
java.lang.String	string(IDataImpl aData)
boolean	test(IDataImpl aData) Evaluates the XPath and returns the result as a boolean.

Method Detail

selectsZeroOrOneNode

public boolean selectsZeroOrOneNode()

Indicates that the XPath selects always 0 or 1 node. The method is not guaranteed to be true for all XPaths that return always 0 or 1 node. It is only guaranteed that if this method returns true then the XPath will never select more than 1 node.

Returns:

Returns true if the XPath selects always 0 or 1 node.

select

public java.util.Iterator select(IDataImpl aContext)
                          throws XmlException

Selects the data objects.

Returns:

(required). An iterator of IDataImpl.

Throws:

XmlException

test

public boolean test(IDataImpl aData)
             throws XmlException

Evaluates the XPath and returns the result as a boolean.

Parameters:

aData - (required).

Throws:

XmlException

number

public double number(IDataImpl aData)
              throws XmlException

Throws:

XmlException

string

public java.lang.String string(IDataImpl aData)
                        throws XmlException

Throws:

XmlException

asString

public java.lang.String asString()