org.apache.tuscany.sca.assembly
Interface Contract

All Superinterfaces:

AbstractContract, Base, java.lang.Cloneable, Extensible, IntentAttachPoint, OperationsConfigurator, PolicySetAttachPoint

All Known Subinterfaces:

ComponentReference, ComponentService, CompositeReference, CompositeService, Reference, RuntimeComponentReference, RuntimeComponentService, Service

All Known Implementing Classes:

ComponentReferenceImpl, ComponentServiceImpl, CompositeReferenceImpl, CompositeServiceImpl, ReferenceImpl, RuntimeComponentReferenceImpl, RuntimeComponentServiceImpl, ServiceImpl

public interface Contract
extends AbstractContract, PolicySetAttachPoint, java.lang.Cloneable

Represents a contract. A contract can be either a service or a reference.

Method Summary

java.lang.Object	clone() Returns a clone of the contract.
<B> B	getBinding(java.lang.Class<B> bindingClass) Returns a binding of the specified type or null if there is no such binding configured on this contract.
java.util.List<Binding>	getBindings() Returns the bindings supported by this contract.
Callback	getCallback() Returns a callback definition of the bindings to use for callbacks.
<B> B	getCallbackBinding(java.lang.Class<B> bindingClass) Returns a callback binding of the specified type or null if there is no such callback binding configured on this contract.
InterfaceContract	getInterfaceContract(Binding binding) Returns the interface contract given a binding.
void	setCallback(Callback callback) Sets a callback definition of the bindings to use for callbacks

Methods inherited from interface org.apache.tuscany.sca.assembly.AbstractContract

getInterfaceContract, getName, isCallback, setInterfaceContract, setIsCallback, setName

Methods inherited from interface org.apache.tuscany.sca.assembly.Base

isUnresolved, setUnresolved

Methods inherited from interface org.apache.tuscany.sca.assembly.Extensible

getExtensions

Methods inherited from interface org.apache.tuscany.sca.assembly.OperationsConfigurator

getConfiguredOperations

Methods inherited from interface org.apache.tuscany.sca.policy.PolicySetAttachPoint

getApplicablePolicySets, getPolicySets

Methods inherited from interface org.apache.tuscany.sca.policy.IntentAttachPoint

getRequiredIntents, getType, setType

Method Detail

getBindings

java.util.List<Binding> getBindings()

Returns the bindings supported by this contract.

Returns:

the bindings supported by this contract

getBinding

<B> B getBinding(java.lang.Class<B> bindingClass)

Returns a binding of the specified type or null if there is no such binding configured on this contract.

Type Parameters:

B - the binding type

Parameters:

bindingClass - the binding type class

Returns:

the binding or null if there is no binding of the specified type

getCallbackBinding

<B> B getCallbackBinding(java.lang.Class<B> bindingClass)

Returns a callback binding of the specified type or null if there is no such callback binding configured on this contract.

Type Parameters:

B - the callback binding type

Parameters:

bindingClass - the callback binding type class

Returns:

the callback binding or null if there is no callback binding of the specified type

getCallback

Callback getCallback()

Returns a callback definition of the bindings to use for callbacks.

Returns:

a definition of the bindings to use for callbacks

setCallback

void setCallback(Callback callback)

Sets a callback definition of the bindings to use for callbacks

Parameters:

callback - a definition of the bindings to use for callbacks

clone

java.lang.Object clone()
                       throws java.lang.CloneNotSupportedException

Returns a clone of the contract.

Returns:

a clone of the reference

Throws:

java.lang.CloneNotSupportedException

getInterfaceContract

InterfaceContract getInterfaceContract(Binding binding)

Returns the interface contract given a binding. Important in the case where a reference with multiplicity > 1 has been promoted and has it's list of resolved bindings extended by a promoting reference. Here the binding from the promoting reference may need the interface contract from the promoting reference and not the promoted reference. TODO - remove this wrinkle with better endpoint support.

Parameters:

binding - the binding for which the interface contract is required

Returns:

the interface contract