Package com.arcadedb.query.sql.executor
Class UnwrapPreviousValueStep
- java.lang.Object
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- com.arcadedb.query.sql.executor.AbstractExecutionStep
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- com.arcadedb.query.sql.executor.UnwrapPreviousValueStep
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- All Implemented Interfaces:
ExecutionStep
,ExecutionStepInternal
public class UnwrapPreviousValueStep extends AbstractExecutionStep
for UPDATE, unwraps the current result set to return the previous value- Author:
- Luigi Dell'Aquila (luigi.dellaquila-(at)-gmail.com)
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Field Summary
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Fields inherited from class com.arcadedb.query.sql.executor.AbstractExecutionStep
ctx, next, prev, profilingEnabled, timedOut
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Constructor Summary
Constructors Constructor Description UnwrapPreviousValueStep(CommandContext ctx, boolean profilingEnabled)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description long
getCost()
returns the absolute cost (in nanoseconds) of the execution of this stepString
prettyPrint(int depth, int indent)
ResultSet
syncPull(CommandContext ctx, int nRecords)
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Methods inherited from class com.arcadedb.query.sql.executor.AbstractExecutionStep
close, getContext, getCostFormatted, getNext, getPrev, isProfilingEnabled, isTimedOut, sendTimeout, setNext, setPrevious, setProfilingEnabled
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface com.arcadedb.query.sql.executor.ExecutionStep
toResult
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Methods inherited from interface com.arcadedb.query.sql.executor.ExecutionStepInternal
canBeCached, copy, deserialize, getDescription, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType, reset, serialize
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Constructor Detail
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UnwrapPreviousValueStep
public UnwrapPreviousValueStep(CommandContext ctx, boolean profilingEnabled)
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Method Detail
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syncPull
public ResultSet syncPull(CommandContext ctx, int nRecords) throws TimeoutException
- Throws:
TimeoutException
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prettyPrint
public String prettyPrint(int depth, int indent)
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getCost
public long getCost()
Description copied from interface:ExecutionStep
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
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