com.j_spaces.jdbc.parser

Class OrNode

java.lang.Object

com.j_spaces.jdbc.parser.ExpNode

com.j_spaces.jdbc.parser.OrNode

All Implemented Interfaces:

Cloneable

public class OrNode
extends ExpNode

This is the OR Node that represents an 'OR' between conditions

Author:

Michael Mitrani, 2Train4, 2004

Field Summary

Fields inherited from class com.j_spaces.jdbc.parser.ExpNode

leftChild, rightChild, template

Constructor Summary

Constructors

Constructor and Description
OrNode()
OrNode(ExpNode leftChild, ExpNode rightChild)

Method Summary

Modifier and Type	Method and Description
void	accept(IQueryExecutor executor, ISpaceProxy space, Transaction txn, int readModifier, int max) Accept the query executor
void	accept(QueryTemplateBuilder builder) Accept the query builder Default implementation returns null - no QueryTemplatePacket is defined
boolean	createJoinIndex(QueryTableData tableData)
boolean	isJoined() is there somewhere in the tree a join condition.
boolean	isValidCompare(Object ob1, Object ob2) Operator nodes implement this method to return whether two objects satisfy the given condition.
ExpNode	newInstance() Prototype method - Create new instance of the class
String	toString()

Methods inherited from class com.j_spaces.jdbc.parser.ExpNode

clone, createIndex, getLeftChild, getRightChild, getTemplate, isContainsItemNode, isContainsItemsRootNode, isInnerQuery, prepareTemplateValues, prepareValues, setLeftChild, setRightChild, setTemplate, toString, validateInnerQueryResult

Methods inherited from class java.lang.Object

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

Constructor Detail

OrNode

public OrNode(ExpNode leftChild,
              ExpNode rightChild)

OrNode

public OrNode()

Method Detail

isValidCompare

public boolean isValidCompare(Object ob1,
                              Object ob2)
                       throws ClassCastException

Description copied from class: ExpNode

Operator nodes implement this method to return whether two objects satisfy the given condition.

Specified by:

isValidCompare in class ExpNode

Returns:

true if the two given objects satisfy the condition

Throws:

ClassCastException

isJoined

public boolean isJoined()

Description copied from class: ExpNode

is there somewhere in the tree a join condition.

Overrides:

isJoined in class ExpNode

newInstance

public ExpNode newInstance()

Description copied from class: ExpNode

Prototype method - Create new instance of the class

Specified by:

newInstance in class ExpNode

accept

public void accept(QueryTemplateBuilder builder)
            throws SQLException

Description copied from class: ExpNode

Accept the query builder Default implementation returns null - no QueryTemplatePacket is defined

Specified by:

accept in class ExpNode

Throws:

SQLException

accept

public void accept(IQueryExecutor executor,
                   ISpaceProxy space,
                   Transaction txn,
                   int readModifier,
                   int max)
            throws SQLException

Accept the query executor

Overrides:

accept in class ExpNode

Throws:

SQLException

createJoinIndex

public boolean createJoinIndex(QueryTableData tableData)

Overrides:

createJoinIndex in class ExpNode

Returns:

true if created join index

toString

public String toString()

Overrides:

toString in class Object