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

Class IntermediateLayer

java.lang.Object

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

Direct Known Subclasses:

ConstantIntermediateLayer, MultiInputColumnIntermediateLayer, SingleInputColumnMultiReferenceIntermediateLayer, SingleInputColumnSingleReferenceIntermediateLayer

public abstract class IntermediateLayer
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
protected static int	CACHE_BLOCK_SIZE
protected Expression	expression
protected float	memoryBudgetInMB
protected long	queryId

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	IntermediateLayer(Expression expression, long queryId, float memoryBudgetInMB)

Method Summary

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

Methods inherited from class java.lang.Object

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

Field Detail

CACHE_BLOCK_SIZE

protected static final int CACHE_BLOCK_SIZE

See Also:

Constant Field Values

expression

protected final Expression expression

queryId

protected final long queryId

memoryBudgetInMB

protected final float memoryBudgetInMB

Constructor Detail

IntermediateLayer

protected IntermediateLayer(Expression expression,
                            long queryId,
                            float memoryBudgetInMB)

Method Detail

constructPointReader

public abstract LayerPointReader constructPointReader()

constructRowReader

public abstract LayerRowReader constructRowReader()

constructRowWindowReader

public final LayerRowWindowReader constructRowWindowReader(org.apache.iotdb.udf.api.customizer.strategy.AccessStrategy strategy,
                                                           float memoryBudgetInMB)
                                                    throws QueryProcessException,
                                                           java.io.IOException

Throws:

QueryProcessException

java.io.IOException

constructRowSlidingSizeWindowReader

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

Throws:

QueryProcessException

constructRowSlidingTimeWindowReader

protected abstract LayerRowWindowReader constructRowSlidingTimeWindowReader(org.apache.iotdb.udf.api.customizer.strategy.SlidingTimeWindowAccessStrategy strategy,
                                                                            float memoryBudgetInMB)
                                                                     throws QueryProcessException,
                                                                            java.io.IOException

Throws:

QueryProcessException

java.io.IOException

constructRowSessionTimeWindowReader

protected abstract LayerRowWindowReader constructRowSessionTimeWindowReader(org.apache.iotdb.udf.api.customizer.strategy.SessionTimeWindowAccessStrategy strategy,
                                                                            float memoryBudgetInMB)
                                                                     throws QueryProcessException,
                                                                            java.io.IOException

Throws:

QueryProcessException

java.io.IOException

constructRowStateWindowReader

protected abstract LayerRowWindowReader constructRowStateWindowReader(org.apache.iotdb.udf.api.customizer.strategy.StateWindowAccessStrategy strategy,
                                                                      float memoryBudgetInMB)
                                                               throws QueryProcessException,
                                                                      java.io.IOException

Throws:

QueryProcessException

java.io.IOException

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object