Package uk.gov.gchq.gaffer.federatedstore.operation.handler.impl

Class FederatedOperationHandler<INPUT,OUTPUT>

java.lang.Object

uk.gov.gchq.gaffer.federatedstore.operation.handler.impl.FederatedOperationHandler<INPUT,OUTPUT>

All Implemented Interfaces:

OperationHandler<FederatedOperation<INPUT,OUTPUT>>

public class FederatedOperationHandler<INPUT,OUTPUT>
extends Object
implements OperationHandler<FederatedOperation<INPUT,OUTPUT>>

FederatedOperation handler for the federation of an PAYLOAD operation with an expected return type OUTPUT

Field Summary

Fields

Modifier and Type	Field	Description
static String	ERROR_WHILE_RUNNING_OPERATION_ON_GRAPHS_FORMAT

Constructor Summary

Constructors

Constructor	Description
FederatedOperationHandler()

Method Summary

Modifier and Type	Method	Description
Object	doOperation(FederatedOperation<INPUT,OUTPUT> operation, Context context, Store store)	Execute the given Operation.

Methods inherited from class java.lang.Object

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

Field Detail

ERROR_WHILE_RUNNING_OPERATION_ON_GRAPHS_FORMAT

public static final String ERROR_WHILE_RUNNING_OPERATION_ON_GRAPHS_FORMAT

See Also:

Constant Field Values

Constructor Detail

FederatedOperationHandler

public FederatedOperationHandler()

Method Detail

doOperation

public Object doOperation(FederatedOperation<INPUT,OUTPUT> operation,
                          Context context,
                          Store store)
                   throws OperationException

Description copied from interface: OperationHandler

Execute the given Operation.

Specified by:

doOperation in interface OperationHandler<INPUT>

Parameters:

operation - the 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 or null.

Throws:

OperationException - thrown if the operation fails