org.jboss.dna.graph.query.process
Class UnionComponent

java.lang.Object
  org.jboss.dna.graph.query.process.ProcessingComponent
      org.jboss.dna.graph.query.process.SetOperationComponent
          org.jboss.dna.graph.query.process.UnionComponent

public class UnionComponent
extends SetOperationComponent

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.jboss.dna.graph.query.process.ProcessingComponent

close, getColumns, getContext

Methods inherited from class java.lang.Object

equals, 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()