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

Class AbstractMaxMinAggregateEvaluatorFactory

java.lang.Object

org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggregateEvaluatorFactory

org.apache.vxquery.runtime.functions.aggregate.AbstractMaxMinAggregateEvaluatorFactory

All Implemented Interfaces:

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

Direct Known Subclasses:

FnMaxAggregateEvaluatorFactory, FnMinAggregateEvaluatorFactory

public abstract class AbstractMaxMinAggregateEvaluatorFactory
extends AbstractTaggedValueArgumentAggregateEvaluatorFactory

See Also:

Serialized Form

Field Summary

Fields inherited from class org.apache.vxquery.runtime.functions.base.AbstractTaggedValueArgumentAggregateEvaluatorFactory

dCtx

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method	Description
protected org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator	createEvaluator(org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)
protected abstract AbstractValueComparisonOperation	createValueComparisonOperation()

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

createAggregateEvaluator

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractMaxMinAggregateEvaluatorFactory

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

Method Detail

createEvaluator

protected org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator createEvaluator(org.apache.hyracks.algebricks.runtime.base.IScalarEvaluator[] args)
                                                                                  throws org.apache.hyracks.algebricks.common.exceptions.AlgebricksException

Specified by:

createEvaluator in class AbstractTaggedValueArgumentAggregateEvaluatorFactory

Throws:

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

createValueComparisonOperation

protected abstract AbstractValueComparisonOperation createValueComparisonOperation()