org.modeshape.graph.query.process
Class UnionComponent

java.lang.Object
  extended by org.modeshape.graph.query.process.ProcessingComponent
      extended by org.modeshape.graph.query.process.SetOperationComponent
          extended by org.modeshape.graph.query.process.UnionComponent

public class UnionComponent
extends SetOperationComponent


Nested Class Summary
 
Nested classes/interfaces inherited from class org.modeshape.graph.query.process.ProcessingComponent
ProcessingComponent.DynamicOperation
 
Field Summary
 
Fields inherited from class org.modeshape.graph.query.process.SetOperationComponent
removeDuplicatesComparator
 
Constructor Summary
UnionComponent(QueryContext context, QueryResults.Columns columns, Iterable<ProcessingComponent> sources, boolean alreadySorted, boolean all)
           
 
Method Summary
 List<Object[]> execute()
          Execute this stage of processing and return the resulting tuples that each conform to the columns.
 
Methods inherited from class org.modeshape.graph.query.process.SetOperationComponent
removeDuplicatesIfRequested, sources, unionCompatible, wrapWithLocationOrdering
 
Methods inherited from class org.modeshape.graph.query.process.ProcessingComponent
close, createDynamicOperation, createSortComparator, emptyTuples, getColumns, getContext, problems
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UnionComponent

public UnionComponent(QueryContext context,
                      QueryResults.Columns columns,
                      Iterable<ProcessingComponent> sources,
                      boolean alreadySorted,
                      boolean all)
Method Detail

execute

public List<Object[]> execute()
Execute this stage of processing and return the resulting tuples that each conform to the columns.

Specified by:
execute in class ProcessingComponent
Returns:
the list of tuples, where each tuple corresonds to the columns; never null
See Also:
ProcessingComponent.execute()


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