Package org.apache.wayang.postgres.operators

Class PostgresTableSource

java.lang.Object

org.apache.wayang.core.plan.wayangplan.OperatorBase

org.apache.wayang.core.plan.wayangplan.UnarySource<Record>

org.apache.wayang.basic.operators.TableSource

org.apache.wayang.jdbc.operators.JdbcTableSource

org.apache.wayang.postgres.operators.PostgresTableSource

All Implemented Interfaces:

Serializable, ActualOperator, ElementaryOperator, ExecutionOperator, Operator, JdbcExecutionOperator, PostgresExecutionOperator

public class PostgresTableSource
extends JdbcTableSource
implements PostgresExecutionOperator

PostgreSQL implementation for the TableSource.

See Also:

• Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.wayang.core.plan.wayangplan.OperatorBase

OperatorBase.GsonSerializer

Field Summary

Fields inherited from class org.apache.wayang.core.plan.wayangplan.OperatorBase

inputSlots, outputSlots, STANDARD_OPERATOR_ARGS

Fields inherited from interface org.apache.wayang.core.plan.wayangplan.Operator

FIRST_EPOCH

Constructor Summary

Constructors

Constructor	Description
PostgresTableSource(String tableName, String... columnNames)	Creates a new instance.
PostgresTableSource(JdbcTableSource that)	Copies an instance (exclusive of broadcasts).

Method Summary

Modifier and Type	Method	Description
List<ChannelDescriptor>	getSupportedInputChannels(int index)	Display the supported Channels for a certain InputSlot.

Methods inherited from class org.apache.wayang.jdbc.operators.JdbcTableSource

createSqlClause, getCardinalityEstimator, getLoadProfileEstimatorConfigurationKey

Methods inherited from class org.apache.wayang.basic.operators.TableSource

getTableName

Methods inherited from class org.apache.wayang.core.plan.wayangplan.UnarySource

getOutput, getType

Methods inherited from class org.apache.wayang.core.plan.wayangplan.OperatorBase

accept, addBroadcastInput, addTargetPlatform, at, collectMappedInputSlots, collectMappedOutputSlots, copy, createCopy, getAllInputs, getAllOutputs, getContainer, getEpoch, getName, getOriginal, getSimpleClassName, getTargetPlatforms, isAuxiliary, isSupportingBroadcastInputs, propagateInputCardinality, propagateOutputCardinality, setAuxiliary, setCardinalityEstimator, setContainer, setEpoch, setName, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.wayang.core.plan.wayangplan.ActualOperator

accept

Methods inherited from interface org.apache.wayang.core.plan.wayangplan.ElementaryOperator

createCardinalityEstimator, getCardinalityEstimator, isAuxiliary, setAuxiliary, setCardinalityEstimator

Methods inherited from interface org.apache.wayang.core.plan.wayangplan.ExecutionOperator

copy, createLoadProfileEstimator, createOutputChannelInstances, getLimitBaseKey, getLoadProfileEstimatorConfigurationKey, getLoadProfileEstimatorConfigurationKeys, getOriginal, getOutputChannelDescriptor, isFiltered

Methods inherited from interface org.apache.wayang.jdbc.operators.JdbcExecutionOperator

createSqlClause, getSupportedOutputChannels

Methods inherited from interface org.apache.wayang.core.plan.wayangplan.Operator

addBroadcastInput, addTargetPlatform, broadcastTo, broadcastTo, collectMappedInputSlots, collectMappedOutputSlots, connectTo, connectTo, getAllInputs, getAllOutputs, getCardinalityPusher, getContainer, getEffectiveOccupant, getEffectiveOccupant, getEpoch, getEstimationContextProperties, getForwards, getInnermostLoop, getInput, getInput, getLoopStack, getName, getNumBroadcastInputs, getNumInputs, getNumOutputs, getNumRegularInputs, getOuterInputSlot, getOutermostInputSlot, getOutermostOutputSlots, getOutput, getOutput, getParent, getTargetPlatforms, isAlternative, isConversion, isElementary, isExecutionOperator, isFeedbackInput, isFeedforwardOutput, isLoopHead, isLoopSubplan, isOwnerOf, isReading, isSink, isSource, isSubplan, isSupportingBroadcastInputs, isUnconnected, propagateInputCardinality, propagateOutputCardinality, propagateOutputCardinality, replaceWith, setContainer, setEpoch, setInput, setName, setOutput

Methods inherited from interface org.apache.wayang.postgres.operators.PostgresExecutionOperator

getPlatform

Constructor Details

PostgresTableSource

public PostgresTableSource(String tableName,
 String... columnNames)

Creates a new instance.

See Also:

• TableSource(String, String...)

PostgresTableSource

public PostgresTableSource(JdbcTableSource that)

Copies an instance (exclusive of broadcasts).

Parameters:

that - that should be copied

Method Details

getSupportedInputChannels

public List<ChannelDescriptor> getSupportedInputChannels(int index)

Description copied from interface: ExecutionOperator

Display the supported Channels for a certain InputSlot.

Specified by:

getSupportedInputChannels in interface ExecutionOperator

Specified by:

getSupportedInputChannels in interface JdbcExecutionOperator

Parameters:

index - the index of the InputSlot

Returns:

an List of Channels' Classes, ordered by their preference of use