org.apache.slide.search.basic.expression
Class BasicExpression

java.lang.Object
  org.apache.slide.search.basic.expression.BasicExpression

All Implemented Interfaces:

IBasicExpression

Direct Known Subclasses:

GenericBasicExpression

public abstract class BasicExpression

extends java.lang.Object

implements IBasicExpression

A BasicSearchExpression represents exactly one operator (AND, GT, ...).

Version:

$Revision: 1.5 $

Field Summary

protected org.jdom.Element	expressionElement the JDOM element representing this expression.
protected BasicExpressionFactory	expressionFactory
protected IBasicResultSet	resultSet the resultset of this expression, if it has the state resolved

Constructor Summary

protected

BasicExpression(org.jdom.Element e) constructor.

Method Summary

IBasicExpressionFactory	getFactory() factory accessor
void	setFactory(IBasicExpressionFactory factory) writes backptr to the factory

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.slide.search.basic.IBasicExpression

execute

Field Detail

expressionFactory

protected BasicExpressionFactory expressionFactory

expressionElement

protected org.jdom.Element expressionElement

the JDOM element representing this expression.

resultSet

protected IBasicResultSet resultSet

the resultset of this expression, if it has the state resolved

Constructor Detail

BasicExpression

protected BasicExpression(org.jdom.Element e)
                   throws InvalidQueryException

constructor. Only called by the conrecte expressions

Parameters:

e - the jdom element representing this expression.

Method Detail

setFactory

public void setFactory(IBasicExpressionFactory factory)

writes backptr to the factory

Specified by:

setFactory in interface IBasicExpression

Parameters:

factory - an IBasicExpressionFactory

getFactory

public IBasicExpressionFactory getFactory()

factory accessor

Specified by:

getFactory in interface IBasicExpression

Returns:

an IBasicExpressionFactory