com.orientechnologies.orient.core.sql.executor

Class FetchFromDatabaseMetadataStep

java.lang.Object

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

com.orientechnologies.orient.core.sql.executor.FetchFromDatabaseMetadataStep

All Implemented Interfaces:

OExecutionStep, OExecutionStepInternal

public class FetchFromDatabaseMetadataStep
extends AbstractExecutionStep

Returns an OResult containing metadata regarding the database

Author:

Luigi Dell'Aquila (l.dellaquila - at - orientdb.com)

Field Summary

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

ctx, next, prev, profilingEnabled, timedOut

Constructor Summary

Constructors

Constructor and Description
FetchFromDatabaseMetadataStep(OCommandContext ctx, boolean profilingEnabled)

Method Summary

Modifier and Type	Method and Description
long	getCost() returns the absolute cost (in nanoseconds) of the execution of this step
String	prettyPrint(int depth, int indent)
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, canBeCached, copy, deserialize, getDescription, getIndent, getName, getSubExecutionPlans, getSubSteps, getTargetNode, getType, reset, serialize

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

toResult

Constructor Detail

FetchFromDatabaseMetadataStep

public FetchFromDatabaseMetadataStep(OCommandContext ctx,
                                     boolean profilingEnabled)

Method Detail

syncPull

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

Throws:

OTimeoutException

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