org.cometd.oort

Class OortService.Result<U>

java.lang.Object

org.cometd.oort.OortService.Result<U>

Type Parameters:

U - the result type

Enclosing class:

OortService<R,C>

public static class OortService.Result<U>
extends Object

Encapsulates the result of a forwarded request returned by OortService.onForward(Request).

Applications must use methods success(Object), failure(Object) or ignore(Object) to signal to the implementation the result of the forwarded request.

OortService may forward a request action for an entity to the owner node, but before the request arrives to the owner node, the entity may be removed from the owner node. When the owner node receives the request for the entity, the entity is not available anymore. Similarly, a request that is broadcast to all nodes arrives to nodes that do not own the entity. The node that receives the request must return a OortService.Result using the following rules:

• If the node owns the entity, use success(Object) or failure(Object) - never use ignore(Object)
• If the node does not own the entity (it never was the owner, or it was the owner but it is not anymore), then use ignore(Object)

See Also:

OortService.Request

Method Summary

Modifier and Type	Method and Description
static <S> OortService.Result<S>	failure(Object failure) Returns a failed OortService.Result containing the given failure object.
static <S> OortService.Result<S>	ignore(Object data) Returns an ignored OortService.Result containing the given data object
static <S> OortService.Result<S>	success(S result) Returns a successful OortService.Result containing the given result object.
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

success

public static <S> OortService.Result<S> success(S result)

Returns a successful OortService.Result containing the given result object.

Type Parameters:

S - the type of the result object

Parameters:

result - the result object

Returns:

a new OortService.Result instance wrapping the result object

failure

public static <S> OortService.Result<S> failure(Object failure)

Returns a failed OortService.Result containing the given failure object.

Type Parameters:

S - the type of the result

Parameters:

failure - the failure object

Returns:

a new OortService.Result instance wrapping the failure object

ignore

public static <S> OortService.Result<S> ignore(Object data)

Returns an ignored OortService.Result containing the given data object

Type Parameters:

S - the type of the result

Parameters:

data - the data object

Returns:

a new OortService.Result instance wrapping the data object

toString

public String toString()

Overrides:

toString in class Object