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

Class MaxHandler

java.lang.Object

uk.gov.gchq.gaffer.store.operation.handler.compare.MaxHandler

All Implemented Interfaces:

OperationHandler<Max>, OutputOperationHandler<Max,Element>

public class MaxHandler
extends Object
implements OutputOperationHandler<Max,Element>

A MaxHandler handles the Max operation. It uses the Comparators instances on the operation to determine the object with the maximum value.

Constructor Summary

Constructors

Constructor	Description
MaxHandler()

Method Summary

Modifier and Type	Method	Description
Element	doOperation(Max 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

MaxHandler

public MaxHandler()

Method Detail

doOperation

public Element doOperation(Max operation,
                           Context context,
                           Store store)
                    throws OperationException

Description copied from interface: OutputOperationHandler

Execute the given Output operation.

Specified by:

doOperation in interface OperationHandler<Max>

Specified by:

doOperation in interface OutputOperationHandler<Max,Element>

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