io.crate.operation.projectors

Class IndexWriterProjector

java.lang.Object

io.crate.operation.projectors.AbstractProjector

io.crate.operation.projectors.IndexWriterProjector

All Implemented Interfaces:

Projector, RowReceiver, RowUpstream

public class IndexWriterProjector
extends AbstractProjector

Field Summary

Fields inherited from class io.crate.operation.projectors.AbstractProjector

downstream, executionState

Constructor Summary

Constructors

Constructor and Description

IndexWriterProjector(org.elasticsearch.cluster.ClusterService clusterService, org.elasticsearch.common.settings.Settings settings, TransportActionProvider transportActionProvider, com.google.common.base.Supplier<java.lang.String> indexNameResolver, BulkRetryCoordinatorPool bulkRetryCoordinatorPool, Reference rawSourceReference, java.util.List<ColumnIdent> primaryKeyIdents, java.util.List<Symbol> primaryKeySymbols, Symbol routingSymbol, ColumnIdent clusteredByColumn, Input<?> sourceInput, java.lang.Iterable<? extends CollectExpression<Row,?>> collectExpressions, java.lang.Integer bulkActions, java.lang.String[] includes, java.lang.String[] excludes, boolean autoCreateIndices, boolean overwriteDuplicates, java.util.UUID jobId)

Method Summary

Methods

Modifier and Type	Method and Description
void	downstream(RowReceiver rowReceiver)
void	fail(java.lang.Throwable throwable) Is called from the upstream in case of a failure.
void	finish() Called from the upstream to indicate that all rows are sent.
boolean	setNextRow(Row row) Feed the downstream with the next input row.

Methods inherited from class io.crate.operation.projectors.AbstractProjector

pause, prepare, repeat, requirements, resume, setUpstream

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexWriterProjector

public IndexWriterProjector(org.elasticsearch.cluster.ClusterService clusterService,
                    org.elasticsearch.common.settings.Settings settings,
                    TransportActionProvider transportActionProvider,
                    com.google.common.base.Supplier<java.lang.String> indexNameResolver,
                    BulkRetryCoordinatorPool bulkRetryCoordinatorPool,
                    Reference rawSourceReference,
                    java.util.List<ColumnIdent> primaryKeyIdents,
                    java.util.List<Symbol> primaryKeySymbols,
                    @Nullable
                    Symbol routingSymbol,
                    ColumnIdent clusteredByColumn,
                    Input<?> sourceInput,
                    java.lang.Iterable<? extends CollectExpression<Row,?>> collectExpressions,
                    @Nullable
                    java.lang.Integer bulkActions,
                    @Nullable
                    java.lang.String[] includes,
                    @Nullable
                    java.lang.String[] excludes,
                    boolean autoCreateIndices,
                    boolean overwriteDuplicates,
                    java.util.UUID jobId)

Method Detail

downstream

public void downstream(RowReceiver rowReceiver)

Specified by:

downstream in interface Projector

Overrides:

downstream in class AbstractProjector

setNextRow

public boolean setNextRow(Row row)

Description copied from interface: RowReceiver

Feed the downstream with the next input row. If the downstream does not need any more rows, it returns false, true otherwise. Any upstream who calls this methods must call RowReceiver.setUpstream(RowUpstream) exactly once so that the receiver is able to call pause/resume on its upstream. RowReceiver.finish() and RowReceiver.fail(Throwable) may be called without calling setUpstream if there are no rows.

Parameters:

row - the next row - the row is usually a shared object and the instances content change after the setNextRow call.

Returns:

false if the downstream does not need any more rows, true otherwise.

finish

public void finish()

Description copied from interface: RowReceiver

Called from the upstream to indicate that all rows are sent. NOTE: This method must not throw any exceptions!

fail

public void fail(java.lang.Throwable throwable)

Description copied from interface: RowReceiver

Is called from the upstream in case of a failure.

Parameters:

throwable - the cause of the fail NOTE: This method must not throw any exceptions!