Package com.arcadedb.query.sql.executor

Class SingleOpExecutionPlan

java.lang.Object

com.arcadedb.query.sql.executor.SingleOpExecutionPlan

All Implemented Interfaces:

ExecutionPlan, InternalExecutionPlan, Serializable

public class SingleOpExecutionPlan
extends Object
implements InternalExecutionPlan

Author:

Luigi Dell'Aquila (luigi.dellaquila-(at)-gmail.com)

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected SimpleExecStatement	statement

Fields inherited from interface com.arcadedb.query.sql.executor.InternalExecutionPlan

JAVA_TYPE

Constructor Summary

Constructors

Constructor	Description
SingleOpExecutionPlan(CommandContext ctx, SimpleExecStatement stm)

Method Summary

Modifier and Type	Method	Description
boolean	canBeCached()
void	close()
ResultSet	executeInternal(BasicCommandContext ctx)
ResultSet	fetchNext(int n)	if the execution can still return N elements, then the result will contain them all.
long	getCost()
List<ExecutionStep>	getSteps()
String	prettyPrint(int depth, int indent)
void	reset(CommandContext ctx)
Result	toResult()

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.arcadedb.query.sql.executor.InternalExecutionPlan

copy, deserialize, getStatement, serialize, setStatement

Field Detail

statement

protected final SimpleExecStatement statement

Constructor Detail

SingleOpExecutionPlan

public SingleOpExecutionPlan(CommandContext ctx,
                             SimpleExecStatement stm)

Method Detail

close

public void close()

Specified by:

close in interface InternalExecutionPlan

fetchNext

public ResultSet fetchNext(int n)

Description copied from interface: InternalExecutionPlan

if the execution can still return N elements, then the result will contain them all. If the execution contains less than N elements, then the result will contain them all, next result(s) will contain zero elements

Specified by:

fetchNext in interface InternalExecutionPlan

Returns:

reset

public void reset(CommandContext ctx)

Specified by:

reset in interface InternalExecutionPlan

getCost

public long getCost()

Specified by:

getCost in interface InternalExecutionPlan

canBeCached

public boolean canBeCached()

Specified by:

canBeCached in interface InternalExecutionPlan

executeInternal

public ResultSet executeInternal(BasicCommandContext ctx)
                          throws CommandExecutionException

Throws:

CommandExecutionException

getSteps

public List<ExecutionStep> getSteps()

Specified by:

getSteps in interface ExecutionPlan

prettyPrint

public String prettyPrint(int depth,
                          int indent)

Specified by:

prettyPrint in interface ExecutionPlan

toResult

public Result toResult()

Specified by:

toResult in interface ExecutionPlan