Package mondrian.rolap

Class DefaultMemberChildrenConstraint

java.lang.Object
mondrian.rolap.DefaultMemberChildrenConstraint
All Implemented Interfaces:
MemberChildrenConstraint, SqlConstraint
public class DefaultMemberChildrenConstraint extends Object implements MemberChildrenConstraint
Restricts the SQL result set to the parent member of a MemberChildren query. If called with a calculated member an exception will be thrown.

  • Constructor Details

    • DefaultMemberChildrenConstraint

      protected DefaultMemberChildrenConstraint()

  • Method Details

    • addMemberConstraint

      public void addMemberConstraint(SqlQuery sqlQuery, RolapCube baseCube, AggStar aggStar, RolapMember parent)
      Description copied from interface: MemberChildrenConstraint
      Modifies a Member.Children query so that only the children of parent will be returned in the result set.
      Specified by:
      addMemberConstraint in interface MemberChildrenConstraint
      Parameters:
      sqlQuery - the query to modify
      baseCube - base cube for virtual members
      aggStar - Aggregate star, if we are reading from an aggregate table,
      parent - the parent member that restricts the returned children

    • addMemberConstraint

      public void addMemberConstraint(SqlQuery sqlQuery, RolapCube baseCube, AggStar aggStar, List<RolapMember> parents)
      Description copied from interface: MemberChildrenConstraint
      Modifies a Member.Children query so that (all or some) children of all parent members contained in parents will be returned in the result set.
      Specified by:
      addMemberConstraint in interface MemberChildrenConstraint
      Parameters:
      sqlQuery - Query to modify
      baseCube - Base cube for virtual members
      aggStar - Aggregate table, or null if query is against fact table
      parents - List of parent members that restrict the returned children

    • 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
      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 Object

    • 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
      Returns:
      valid key or null to prevent the result from being cached

    • instance

      public static MemberChildrenConstraint instance()