org.javarosa.xpath.expr

Class XPathUnionExpr

java.lang.Object

org.javarosa.xpath.expr.XPathExpression

org.javarosa.xpath.expr.XPathOpExpr

org.javarosa.xpath.expr.XPathBinaryOpExpr

org.javarosa.xpath.expr.XPathUnionExpr

All Implemented Interfaces:

Serializable, Externalizable

public class XPathUnionExpr
extends XPathBinaryOpExpr

See Also:

Serialized Form

Field Summary

Fields inherited from class org.javarosa.xpath.expr.XPathBinaryOpExpr

a, b

Constructor Summary

Constructors

Constructor and Description
XPathUnionExpr()
XPathUnionExpr(XPathExpression a, XPathExpression b)

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o)
Object	eval(DataInstance model, EvaluationContext evalContext)
boolean	isIdempotent() Returns true if this expression is idempotent with respect to the current state of the form.
void	readExternal(DataInputStream in, PrototypeFactory pf)
String	toString()
void	writeExternal(DataOutputStream out)

Methods inherited from class org.javarosa.xpath.expr.XPathBinaryOpExpr

containsFunc, pivot, toString

Methods inherited from class org.javarosa.xpath.expr.XPathExpression

eval, hashCode, pivot, print, printParseTree

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

XPathUnionExpr

public XPathUnionExpr()

XPathUnionExpr

public XPathUnionExpr(XPathExpression a,
                      XPathExpression b)

Method Detail

eval

public Object eval(DataInstance model,
                   EvaluationContext evalContext)

Specified by:

eval in class XPathExpression

isIdempotent

public boolean isIdempotent()

Description copied from class: XPathExpression

Returns true if this expression is idempotent with respect to the current state of the form.

Specified by:

isIdempotent in class XPathExpression

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class XPathBinaryOpExpr

readExternal

public void readExternal(DataInputStream in,
                         PrototypeFactory pf)
                  throws IOException,
                         DeserializationException

Specified by:

readExternal in interface Externalizable

Overrides:

readExternal in class XPathBinaryOpExpr

Throws:

IOException

DeserializationException

writeExternal

public void writeExternal(DataOutputStream out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Overrides:

writeExternal in class XPathBinaryOpExpr

Throws:

IOException