public class ProjectComponent extends DelegatingComponent
ProcessingComponent
implementation that performs a PROJECT
operation to reduce the columns that
appear in the results.ProcessingComponent.DynamicOperation
Constructor and Description |
---|
ProjectComponent(ProcessingComponent delegate,
List<Column> columns) |
Modifier and Type | Method and Description |
---|---|
List<Object[]> |
execute()
Execute this stage of processing and return the resulting tuples that each conform to the
columns . |
close, delegate
createDynamicOperation, createSortComparator, emptyTuples, getColumns, getContext, getLocationIndexes, problems
public ProjectComponent(ProcessingComponent delegate, List<Column> columns)
public List<Object[]> execute()
ProcessingComponent
columns
.execute
in class ProcessingComponent
columns
; never nullCopyright © 2008-2014 JBoss, a division of Red Hat. All Rights Reserved.