Package org.apache.vxquery.runtime.functions.base

Class AbstractTaggedValueArgumentAggregateEvaluatorFactory

java.lang.Object

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

All Implemented Interfaces:

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

Direct Known Subclasses:

AbstractMaxMinAggregateEvaluatorFactory, AvgGlobalAggregateEvaluatorFactory, AvgLocalAggregateEvaluatorFactory, FnAvgAggregateEvaluatorFactory, FnCountAggregateEvaluatorFactory, FnSumAggregateEvaluatorFactory, SequenceAggregateEvaluatorFactory

public abstract class AbstractTaggedValueArgumentAggregateEvaluatorFactory
extends Object
implements org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluatorFactory

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
static DynamicContext	dCtx

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

dCtx

public static DynamicContext dCtx

Constructor Detail

AbstractTaggedValueArgumentAggregateEvaluatorFactory

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

Method Detail

createAggregateEvaluator

public final org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluator createAggregateEvaluator(org.apache.hyracks.api.context.IHyracksTaskContext ctx)
                                                                                              throws org.apache.hyracks.algebricks.common.exceptions.AlgebricksException

Specified by:

createAggregateEvaluator in interface org.apache.hyracks.algebricks.runtime.base.IAggregateEvaluatorFactory

Throws:

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

createEvaluator

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

Throws:

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