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

Class AbstractCollectionRule

java.lang.Object

org.apache.vxquery.compiler.rewriter.rules.AbstractCollectionRule

All Implemented Interfaces:

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

Direct Known Subclasses:

IntroduceCollectionRule, SetCollectionDataSourceRule

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

Constructor Summary

Constructors

Constructor	Description
AbstractCollectionRule()

Method Summary

Modifier and Type	Method	Description
protected String[]	getCollectionName(org.apache.commons.lang3.mutable.Mutable<org.apache.hyracks.algebricks.core.algebra.base.ILogicalOperator> opRef)	Get the arguments for the collection and collection-with-tag.
boolean	rewritePost(org.apache.commons.lang3.mutable.Mutable<org.apache.hyracks.algebricks.core.algebra.base.ILogicalOperator> opRef, org.apache.hyracks.algebricks.core.algebra.base.IOptimizationContext context)

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

rewritePre

Methods inherited from class java.lang.Object

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

Constructor Detail

AbstractCollectionRule

public AbstractCollectionRule()

Method Detail

getCollectionName

protected String[] getCollectionName(org.apache.commons.lang3.mutable.Mutable<org.apache.hyracks.algebricks.core.algebra.base.ILogicalOperator> opRef)

Get the arguments for the collection and collection-with-tag. Return null for not a collection.

Parameters:

opRef - Logical operator

Returns:

collection name

rewritePost

public boolean rewritePost(org.apache.commons.lang3.mutable.Mutable<org.apache.hyracks.algebricks.core.algebra.base.ILogicalOperator> opRef,
                           org.apache.hyracks.algebricks.core.algebra.base.IOptimizationContext context)

Specified by:

rewritePost in interface org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule