static class RolapNativeFilter.FilterConstraint extends RolapNativeSet.SetConstraint
Modifier and Type | Field and Description |
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(package private) Exp |
filterExpr |
args
Constructor and Description |
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RolapNativeFilter.FilterConstraint(CrossJoinArg[] args,
RolapEvaluator evaluator,
Exp filterExpr) |
Modifier and Type | Method and Description |
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void |
addConstraint(SqlQuery sqlQuery,
RolapCube baseCube,
AggStar aggStar)
Called from LevelMembers: restricts the SQL resultset to the current
context.
|
Object |
getCacheKey()
returns a key to cache the result
|
protected boolean |
isJoinRequired()
Returns whether a join with the fact table is required.
|
getMemberChildrenConstraint
addLevelConstraint, addMemberConstraint, addMemberConstraint, getEvaluator, isValidContext, isValidContext
Exp filterExpr
public RolapNativeFilter.FilterConstraint(CrossJoinArg[] args, RolapEvaluator evaluator, Exp filterExpr)
protected boolean isJoinRequired()
If there is a crossjoin, we need to join the fact table - even if the evaluator context is empty.
Overriding isJoinRequired() for native filters because we have to force a join to the fact table if the filter expression references a measure.
isJoinRequired
in class RolapNativeSet.SetConstraint
public void addConstraint(SqlQuery sqlQuery, RolapCube baseCube, AggStar aggStar)
SqlContextConstraint
addConstraint
in interface TupleConstraint
addConstraint
in class RolapNativeSet.SetConstraint
sqlQuery
- the query to modifybaseCube
- base cube for virtual cube constraintsaggStar
- aggregate star to usepublic Object getCacheKey()
RolapNativeSet.SetConstraint
getCacheKey
in interface SqlConstraint
getCacheKey
in class RolapNativeSet.SetConstraint