Package org.apache.vxquery.compiler.rewriter.rules

Class AbstractVXQueryAggregateRule

java.lang.Object

org.apache.vxquery.compiler.rewriter.rules.AbstractVXQueryAggregateRule

All Implemented Interfaces:

org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule

Direct Known Subclasses:

ConsolidateAssignAggregateRule, ConvertAssignToAggregateRule

public abstract class AbstractVXQueryAggregateRule
extends Object
implements org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule

Constructor Summary

Constructors

Constructor	Description
AbstractVXQueryAggregateRule()

Method Summary

Modifier and Type	Method	Description
protected org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo	getAggregateFunction(org.apache.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression functionCall)

Methods inherited from interface org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule

rewritePost, rewritePre

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractVXQueryAggregateRule

public AbstractVXQueryAggregateRule()

Method Detail

getAggregateFunction

protected org.apache.hyracks.algebricks.core.algebra.functions.IFunctionInfo getAggregateFunction(org.apache.hyracks.algebricks.core.algebra.expressions.AbstractFunctionCallExpression functionCall)