Package org.apache.iotdb.db.mpp.transformation.dag.intermediate

Class ConstantIntermediateLayer

java.lang.Object

org.apache.iotdb.db.mpp.transformation.dag.intermediate.IntermediateLayer

org.apache.iotdb.db.mpp.transformation.dag.intermediate.ConstantIntermediateLayer

public class ConstantIntermediateLayer
extends IntermediateLayer

IntermediateLayer for constants.

Field Summary

Fields inherited from class org.apache.iotdb.db.mpp.transformation.dag.intermediate.IntermediateLayer

CACHE_BLOCK_SIZE, expression, memoryBudgetInMB, queryId

Constructor Summary

Constructors

Constructor	Description
ConstantIntermediateLayer(ConstantOperand expression, long queryId, float memoryBudgetInMB)

Method Summary

Modifier and Type	Method	Description
LayerPointReader	constructPointReader()
LayerRowReader	constructRowReader()
protected LayerRowWindowReader	constructRowSessionTimeWindowReader(org.apache.iotdb.udf.api.customizer.strategy.SessionTimeWindowAccessStrategy strategy, float memoryBudgetInMB)
protected LayerRowWindowReader	constructRowSlidingSizeWindowReader(org.apache.iotdb.udf.api.customizer.strategy.SlidingSizeWindowAccessStrategy strategy, float memoryBudgetInMB)
protected LayerRowWindowReader	constructRowSlidingTimeWindowReader(org.apache.iotdb.udf.api.customizer.strategy.SlidingTimeWindowAccessStrategy strategy, float memoryBudgetInMB)
protected LayerRowWindowReader	constructRowStateWindowReader(org.apache.iotdb.udf.api.customizer.strategy.StateWindowAccessStrategy strategy, float memoryBudgetInMB)

Methods inherited from class org.apache.iotdb.db.mpp.transformation.dag.intermediate.IntermediateLayer

constructRowWindowReader, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstantIntermediateLayer

public ConstantIntermediateLayer(ConstantOperand expression,
                                 long queryId,
                                 float memoryBudgetInMB)
                          throws QueryProcessException

Throws:

QueryProcessException

Method Detail

constructPointReader

public LayerPointReader constructPointReader()

Specified by:

constructPointReader in class IntermediateLayer

constructRowReader

public LayerRowReader constructRowReader()

Specified by:

constructRowReader in class IntermediateLayer

constructRowSlidingSizeWindowReader

protected LayerRowWindowReader constructRowSlidingSizeWindowReader(org.apache.iotdb.udf.api.customizer.strategy.SlidingSizeWindowAccessStrategy strategy,
                                                                   float memoryBudgetInMB)

Specified by:

constructRowSlidingSizeWindowReader in class IntermediateLayer

constructRowSlidingTimeWindowReader

protected LayerRowWindowReader constructRowSlidingTimeWindowReader(org.apache.iotdb.udf.api.customizer.strategy.SlidingTimeWindowAccessStrategy strategy,
                                                                   float memoryBudgetInMB)

Specified by:

constructRowSlidingTimeWindowReader in class IntermediateLayer

constructRowSessionTimeWindowReader

protected LayerRowWindowReader constructRowSessionTimeWindowReader(org.apache.iotdb.udf.api.customizer.strategy.SessionTimeWindowAccessStrategy strategy,
                                                                   float memoryBudgetInMB)

Specified by:

constructRowSessionTimeWindowReader in class IntermediateLayer

constructRowStateWindowReader

protected LayerRowWindowReader constructRowStateWindowReader(org.apache.iotdb.udf.api.customizer.strategy.StateWindowAccessStrategy strategy,
                                                             float memoryBudgetInMB)

Specified by:

constructRowStateWindowReader in class IntermediateLayer