Package org.apache.vxquery.runtime.functions.aggregate

Class AbstractMaxMinScalarEvaluatorFactory

java.lang.Object

org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluatorFactory

org.apache.vxquery.runtime.functions.aggregate.AbstractMaxMinScalarEvaluatorFactory

All Implemented Interfaces:

Serializable, org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory

Direct Known Subclasses:

FnMaxScalarEvaluatorFactory, FnMinScalarEvaluatorFactory

public abstract class AbstractMaxMinScalarEvaluatorFactory
extends AbstractTaggedValueArgumentScalarEvaluatorFactory

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
AbstractMaxMinScalarEvaluatorFactory(org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory[] args)

Method Summary

Modifier and Type	Method	Description
protected org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator	createEvaluator(org.apache.hyracks.api.context.IHyracksTaskContext ctx, org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)
protected abstract AbstractValueComparisonOperation	createValueComparisonOperation()

Methods inherited from class org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentScalarEvaluatorFactory

createScalarEvaluator

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractMaxMinScalarEvaluatorFactory

public AbstractMaxMinScalarEvaluatorFactory(org.apache.hyracks.algebricks.runtime.base.IScalarEvaluatorFactory[] args)

Method Detail

createEvaluator

protected org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator createEvaluator(org.apache.hyracks.api.context.IHyracksTaskContext ctx,
                                                                                      org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)
                                                                               throws org.apache.hyracks.algebricks.common.exceptions.AlgebricksException

Specified by:

createEvaluator in class AbstractTaggedValueArgumentScalarEvaluatorFactory

Throws:

org.apache.hyracks.algebricks.common.exceptions.AlgebricksException

createValueComparisonOperation

protected abstract AbstractValueComparisonOperation createValueComparisonOperation()