mondrian.rolap
Class ChildByNameConstraint

java.lang.Object
  mondrian.rolap.DefaultMemberChildrenConstraint
      mondrian.rolap.ChildByNameConstraint

All Implemented Interfaces:

MemberChildrenConstraint, SqlConstraint

 class ChildByNameConstraint
extends DefaultMemberChildrenConstraint

Constraint which optimizes the search for a child by name. This is used whenever the string representation of a member is parsed, e.g. [Customers].[USA].[CA]. Restricts the result to the member we are searching for.

Author:

avix

Constructor Summary

ChildByNameConstraint(Id.Segment childName)
Creates a ChildByNameConstraint.

Method Summary

void	addLevelConstraint(SqlQuery query, RolapCube baseCube, AggStar aggStar, RolapLevel level) Will be called once for the level that contains the children of a Member.Children query.
boolean	equals(Object obj)
Object	getCacheKey() Returns a key that becomes part of the key for caching the result of the SQL query.
int	hashCode()
String	toString()

Methods inherited from class mondrian.rolap.DefaultMemberChildrenConstraint

addMemberConstraint, addMemberConstraint, instance

Methods inherited from class java.lang.Object

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

Constructor Detail

ChildByNameConstraint

public ChildByNameConstraint(Id.Segment childName)

Creates a ChildByNameConstraint.

Parameters:

childName - Name of child

Method Detail

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

addLevelConstraint

public void addLevelConstraint(SqlQuery query,
                               RolapCube baseCube,
                               AggStar aggStar,
                               RolapLevel level)

Description copied from interface: MemberChildrenConstraint

Will be called once for the level that contains the children of a Member.Children query. If the condition requires so, it may join the levels table to the fact table.

Specified by:

addLevelConstraint in interface MemberChildrenConstraint

Overrides:

addLevelConstraint in class DefaultMemberChildrenConstraint

Parameters:

query - the query to modify

baseCube - base cube for virtual members

aggStar - Aggregate table, or null if query is against fact table

level - the level that contains the children

toString

public String toString()

Overrides:

toString in class DefaultMemberChildrenConstraint

getCacheKey

public Object getCacheKey()

Description copied from interface: SqlConstraint

Returns a key that becomes part of the key for caching the result of the SQL query. So SqlConstraint instances that produce the same SQL resultset must return equal keys in terms of equal() and hashCode().

Specified by:

getCacheKey in interface SqlConstraint

Overrides:

getCacheKey in class DefaultMemberChildrenConstraint

Returns:

valid key or null to prevent the result from being cached