com.orientechnologies.orient.core.sql.executor

Class FetchFromIndexStep

java.lang.Object

com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

com.orientechnologies.orient.core.sql.executor.FetchFromIndexStep

All Implemented Interfaces:

OExecutionStep, OExecutionStepInternal

Direct Known Subclasses:

FetchFromIndexValuesStep

public class FetchFromIndexStep
extends AbstractExecutionStep

Created by luigidellaquila on 23/07/16.

Field Summary

Fields

Modifier and Type	Field and Description
protected OBooleanExpression	condition
protected OIndex	index
protected String	indexName

Fields inherited from class com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

ctx, next, prev, profilingEnabled, timedOut

Constructor Summary

Constructors

Constructor and Description
FetchFromIndexStep(OIndex<?> index, OBooleanExpression condition, OBinaryCondition additionalRangeCondition, boolean orderAsc, OCommandContext ctx, boolean profilingEnabled)
FetchFromIndexStep(OIndex<?> index, OBooleanExpression condition, OBinaryCondition additionalRangeCondition, OCommandContext ctx, boolean profilingEnabled)
FetchFromIndexStep(String indexName, OBooleanExpression condition, OBinaryCondition additionalRangeCondition, boolean orderAsc, OCommandContext ctx, boolean profilingEnabled)

Method Summary

Modifier and Type	Method and Description
boolean	canBeCached()
OExecutionStep	copy(OCommandContext ctx)
void	deserialize(OResult fromResult)
long	getCost() returns the absolute cost (in nanoseconds) of the execution of this step
protected boolean	isOrderAsc()
String	prettyPrint(int depth, int indent)
void	reset()
OResult	serialize()
OResultSet	syncPull(OCommandContext ctx, int nRecords)

Methods inherited from class com.orientechnologies.orient.core.sql.executor.AbstractExecutionStep

close, getContext, getCostFormatted, getNext, getPrev, isProfilingEnabled, sendTimeout, setNext, setPrevious, setProfilingEnabled

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.orientechnologies.orient.core.sql.executor.OExecutionStepInternal

basicDeserialize, basicSerialize, getDescription, getIndent, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType

Methods inherited from interface com.orientechnologies.orient.core.sql.executor.OExecutionStep

toResult

Field Detail

index

protected OIndex index

condition

protected OBooleanExpression condition

indexName

protected String indexName

Constructor Detail

FetchFromIndexStep

public FetchFromIndexStep(OIndex<?> index,
                          OBooleanExpression condition,
                          OBinaryCondition additionalRangeCondition,
                          OCommandContext ctx,
                          boolean profilingEnabled)

FetchFromIndexStep

public FetchFromIndexStep(OIndex<?> index,
                          OBooleanExpression condition,
                          OBinaryCondition additionalRangeCondition,
                          boolean orderAsc,
                          OCommandContext ctx,
                          boolean profilingEnabled)

FetchFromIndexStep

public FetchFromIndexStep(String indexName,
                          OBooleanExpression condition,
                          OBinaryCondition additionalRangeCondition,
                          boolean orderAsc,
                          OCommandContext ctx,
                          boolean profilingEnabled)

Method Detail

syncPull

public OResultSet syncPull(OCommandContext ctx,
                           int nRecords)
                    throws OTimeoutException

Throws:

OTimeoutException

isOrderAsc

protected boolean isOrderAsc()

prettyPrint

public String prettyPrint(int depth,
                          int indent)

getCost

public long getCost()

Description copied from interface: OExecutionStep

returns the absolute cost (in nanoseconds) of the execution of this step

Returns:

the absolute cost (in nanoseconds) of the execution of this step, -1 if not calculated

serialize

public OResult serialize()

deserialize

public void deserialize(OResult fromResult)

reset

public void reset()

canBeCached

public boolean canBeCached()

copy

public OExecutionStep copy(OCommandContext ctx)