com.bigdata.rdf.sparql.ast.optimizers
Class ASTUnionFiltersOptimizer

java.lang.Object
  com.bigdata.rdf.sparql.ast.optimizers.ASTUnionFiltersOptimizer

All Implemented Interfaces:

IASTOptimizer

public class ASTUnionFiltersOptimizer
extends Object
implements IASTOptimizer

Constructor Summary

ASTUnionFiltersOptimizer()

Method Summary

IQueryNode

optimize(AST2BOpContext context, IQueryNode queryNode, IBindingSet[] bindingSets) Optimize the AST.

Methods inherited from class java.lang.Object

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

Constructor Detail

ASTUnionFiltersOptimizer

public ASTUnionFiltersOptimizer()

Method Detail

optimize

public IQueryNode optimize(AST2BOpContext context,
                           IQueryNode queryNode,
                           IBindingSet[] bindingSets)

Description copied from interface: IASTOptimizer

Optimize the AST.

Specified by:

optimize in interface IASTOptimizer

Parameters:

context - The evaluation context.

queryNode - The AST (in).

Returns:

The optimized AST.