org.apache.flink.table.planner.operations

Class DataStreamQueryOperation<E>

java.lang.Object

org.apache.flink.table.planner.operations.DataStreamQueryOperation<E>

All Implemented Interfaces:

org.apache.flink.table.operations.Operation, org.apache.flink.table.operations.QueryOperation

@Internal
public class DataStreamQueryOperation<E>
extends Object
implements org.apache.flink.table.operations.QueryOperation

Describes a relational operation that reads from a DataStream.

This is only used for testing.

This operation may expose only part, or change the order of the fields available in a CompositeType of the underlying DataStream. The getFieldIndices() describes the mapping between fields of the TableSchema to the CompositeType.

Constructor Summary

Constructors

Constructor and Description
DataStreamQueryOperation(org.apache.flink.table.catalog.ObjectIdentifier identifier, org.apache.flink.streaming.api.datastream.DataStream<E> dataStream, int[] fieldIndices, org.apache.flink.table.api.TableSchema tableSchema, boolean[] fieldNullables, org.apache.flink.table.planner.plan.stats.FlinkStatistic statistic)

Method Summary

Modifier and Type	Method and Description
<T> T	accept(org.apache.flink.table.operations.QueryOperationVisitor<T> visitor)
String	asSummaryString()
List<org.apache.flink.table.operations.QueryOperation>	getChildren()
org.apache.flink.streaming.api.datastream.DataStream<E>	getDataStream()
int[]	getFieldIndices()
boolean[]	getFieldNullables()
org.apache.flink.table.catalog.ObjectIdentifier	getIdentifier()
org.apache.flink.table.planner.plan.stats.FlinkStatistic	getStatistic()
org.apache.flink.table.api.TableSchema	getTableSchema()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.flink.table.operations.QueryOperation

asSerializableString

Constructor Detail

DataStreamQueryOperation

public DataStreamQueryOperation(org.apache.flink.table.catalog.ObjectIdentifier identifier,
                                org.apache.flink.streaming.api.datastream.DataStream<E> dataStream,
                                int[] fieldIndices,
                                org.apache.flink.table.api.TableSchema tableSchema,
                                boolean[] fieldNullables,
                                org.apache.flink.table.planner.plan.stats.FlinkStatistic statistic)

Method Detail

getDataStream

public org.apache.flink.streaming.api.datastream.DataStream<E> getDataStream()

getFieldIndices

public int[] getFieldIndices()

getTableSchema

public org.apache.flink.table.api.TableSchema getTableSchema()

Specified by:

getTableSchema in interface org.apache.flink.table.operations.QueryOperation

asSummaryString

public String asSummaryString()

Specified by:

asSummaryString in interface org.apache.flink.table.operations.Operation

getChildren

public List<org.apache.flink.table.operations.QueryOperation> getChildren()

Specified by:

getChildren in interface org.apache.flink.table.operations.QueryOperation

accept

public <T> T accept(org.apache.flink.table.operations.QueryOperationVisitor<T> visitor)

Specified by:

accept in interface org.apache.flink.table.operations.QueryOperation

getIdentifier

public org.apache.flink.table.catalog.ObjectIdentifier getIdentifier()

getFieldNullables

public boolean[] getFieldNullables()

getStatistic

public org.apache.flink.table.planner.plan.stats.FlinkStatistic getStatistic()