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java.lang.Objectmondrian.calc.impl.AbstractCalc
mondrian.calc.impl.GenericCalc
mondrian.calc.impl.ValueCalc
public class ValueCalc
Expression which yields the value of the current member in the current dimensional context.
MemberValueCalc
Field Summary |
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Fields inherited from class mondrian.calc.impl.AbstractCalc |
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exp, type |
Constructor Summary | |
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ValueCalc(Exp exp)
Creates a ValueCalc. |
Method Summary | |
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boolean |
dependsOn(Hierarchy hierarchy)
Returns whether this expression depends upon a given hierarchy. |
java.lang.Object |
evaluate(Evaluator evaluator)
Evaluates this expression. |
Methods inherited from class mondrian.calc.impl.GenericCalc |
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evaluateBoolean, evaluateDateTime, evaluateDimension, evaluateDouble, evaluateHierarchy, evaluateInteger, evaluateLevel, evaluateMember, evaluateString, evaluateTuple, evaluateVoid, numberToDouble |
Methods inherited from class mondrian.calc.impl.AbstractCalc |
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accept, anyDepends, anyDependsButFirst, butDepends, getArguments, getCalcs, getName, getResultStyle, getType, simplifyEvaluator |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface mondrian.calc.Calc |
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accept, getResultStyle, getType |
Constructor Detail |
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public ValueCalc(Exp exp)
exp
- Source expressionMethod Detail |
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public java.lang.Object evaluate(Evaluator evaluator)
Calc
evaluator
- Provides dimensional context in which to evaluate
this expression
public boolean dependsOn(Hierarchy hierarchy)
Calc
If it does not depend on the hierarchy, then re-evaluating the expression with a different member of this context must produce the same answer.
Some examples:[Measures].[Unit Sales]
depends on all dimensions except [Measures]
.
([Measures].[Unit Sales],
[Time].[1997]) > 1000
depends on all hierarchies except [Measures] and [Time].
Filter([Store].[USA].Children,
[Measures].[Unit Sales] < 50)
depends upon all hierarchies except [Store] and [Measures].
How so? Normally the scalar expression would depend upon all hierarchies
except [Measures], but the Filter
function sets the [Store]
context before evaluating the scalar expression, so it is not inherited
from the surrounding context.
dependsOn
in interface Calc
dependsOn
in class AbstractCalc
hierarchy
- Hierarchy
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