Package uk.gov.gchq.gaffer.store.operation.handler

Class LimitHandler<T>

java.lang.Object

uk.gov.gchq.gaffer.store.operation.handler.LimitHandler<T>

All Implemented Interfaces:

OperationHandler<Limit<T>>, OutputOperationHandler<Limit<T>,Iterable<? extends T>>

public class LimitHandler<T>
extends Object
implements OutputOperationHandler<Limit<T>,Iterable<? extends T>>

An LimitHandler handles for Limit operations. It simply wraps the input iterable in a LimitedIterable so the data is not stored in memory.

Constructor Summary

Constructors

Constructor	Description
LimitHandler()

Method Summary

Modifier and Type	Method	Description
Iterable<? extends T>	doOperation(Limit<T> operation, Context context, Store store)	Execute the given Output operation.

Methods inherited from class java.lang.Object

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

Constructor Detail

LimitHandler

public LimitHandler()

Method Detail

doOperation

public Iterable<? extends T> doOperation(Limit<T> operation,
                                         Context context,
                                         Store store)
                                  throws OperationException

Description copied from interface: OutputOperationHandler

Execute the given Output operation.

Specified by:

doOperation in interface OperationHandler<T>

Specified by:

doOperation in interface OutputOperationHandler<Limit<T>,Iterable<? extends T>>

Parameters:

operation - the Output operation to be executed

context - the operation chain context, containing the user who executed the operation

store - the Store the operation should be run on

Returns:

the output for the operation.

Throws:

OperationException - thrown if the operation fails