Package com.google.web.bindery.requestfactory.server

Class ServiceLayerCache

java.lang.Object

com.google.web.bindery.requestfactory.server.ServiceLayer

com.google.web.bindery.requestfactory.server.ServiceLayerDecorator

com.google.web.bindery.requestfactory.server.ServiceLayerCache

class ServiceLayerCache
extends ServiceLayerDecorator

A cache for idempotent methods in ServiceLayer. The caching is separate from ReflectiveServiceLayer so that the cache can be applied to any decorators injected by the user.

Field Summary

Fields inherited from class com.google.web.bindery.requestfactory.server.ServiceLayerDecorator

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Fields inherited from class com.google.web.bindery.requestfactory.server.ServiceLayer

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Constructor Summary

Constructors

Constructor	Description
ServiceLayerCache()

Method Summary

Modifier and Type	Method	Description
<T extends Locator<?, ?>> T	createLocator(Class<T> clazz)	Create an instance of the requested Locator type.
Object	createServiceInstance(Class<? extends RequestContext> requestContext)	Create an instance of a service object that can be used as the target for the given method invocation.
ClassLoader	getDomainClassLoader()	Returns the ClassLoader that should be used when attempting to access domain classes or resources.
Method	getGetter(Class<?> domainType, String property)	Determine the method to invoke when retrieving the given property.
Class<?>	getIdType(Class<?> domainType)	Returns the type of object the domain type's findFoo() or Locator.getId() expects to receive.
Type	getRequestReturnType(Method contextMethod)	Compute the return type for a method declared in a RequestContext by analyzing the generic method declaration.
Method	getSetter(Class<?> domainType, String property)	Determine the method to invoke when setting the given property.
boolean	requiresServiceLocator(Method contextMethod, Method domainMethod)	Determines if the invocation of a domain method requires a ServiceLocator as the 0th parameter when passed into ServiceLayer.invoke(Method, Object...).
Class<? extends BaseProxy>	resolveClass(String typeToken)	Given a type token previously returned from ServiceLayer.resolveTypeToken(Class), return the Class literal associated with the token.
<T> Class<? extends T>	resolveClientType(Class<?> domainClass, Class<T> clientType, boolean required)	Determine the type used by the client code to represent a given domain type.
Class<?>	resolveDomainClass(Class<?> clazz)	Determine the domain (server-side) type that the given client type is mapped to.
Method	resolveDomainMethod(String operation)	Return the domain service method associated with a RequestContext method declaration.
Class<? extends Locator<?,?>>	resolveLocator(Class<?> domainType)	Return the type of Locator that should be used to access the given domain type.
Class<? extends RequestContext>	resolveRequestContext(String operation)	Find a RequestContext that should be used to fulfill the requested operation.
Method	resolveRequestContextMethod(String operation)	Find a RequestContext method declaration by name.
Class<? extends RequestFactory>	resolveRequestFactory(String binaryName)	Loads and validates a RequestFactory interface.
Class<?>	resolveServiceClass(Class<? extends RequestContext> requestContextClass)	Given a RequestContext method, find the service class referenced in the Service or ServiceName annotation.
Class<? extends ServiceLocator>	resolveServiceLocator(Class<? extends RequestContext> requestContext)	Given a RequestContext method declaration, resolve the ServiceLocator that should be used when invoking the domain method.
String	resolveTypeToken(Class<? extends BaseProxy> domainClass)	Return a string used to represent the given type in the wire protocol.

Methods inherited from class com.google.web.bindery.requestfactory.server.ServiceLayerDecorator

createDomainObject, createServiceLocator, die, getId, getNext, getProperty, getTop, getVersion, invoke, isLive, loadDomainObject, loadDomainObjects, report, report, setProperty, validate

Methods inherited from class com.google.web.bindery.requestfactory.server.ServiceLayer

create

Methods inherited from class java.lang.Object

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

Constructor Details

ServiceLayerCache

ServiceLayerCache()

Method Details

createLocator

public <T extends Locator<?,
?>> T createLocator(Class<T> clazz)

Description copied from class: ServiceLayer

Create an instance of the requested Locator type.

Overrides:

createLocator in class ServiceLayerDecorator

Type Parameters:

T - the requested Locator type

Parameters:

clazz - the requested Locator type

Returns:

an instance of the requested Locator type

createServiceInstance

public Object createServiceInstance(Class<? extends RequestContext> requestContext)

Description copied from class: ServiceLayer

Create an instance of a service object that can be used as the target for the given method invocation.

Overrides:

createServiceInstance in class ServiceLayerDecorator

Parameters:

requestContext - the RequestContext type for which a service object must be instantiated.

Returns:

an instance of the requested service object

getDomainClassLoader

public ClassLoader getDomainClassLoader()

Description copied from class: ServiceLayer

Returns the ClassLoader that should be used when attempting to access domain classes or resources.

The default implementation returns Thread.currentThread().getContextClassLoader().

Overrides:

getDomainClassLoader in class ServiceLayerDecorator

getGetter

public Method getGetter(Class<?> domainType,
 String property)

Description copied from class: ServiceLayer

Determine the method to invoke when retrieving the given property.

Overrides:

getGetter in class ServiceLayerDecorator

Parameters:

domainType - a domain entity type

property - the name of the property to be retrieved

Returns:

the Method that should be invoked to retrieve the property or null if the method could not be located

getIdType

public Class<?> getIdType(Class<?> domainType)

Description copied from class: ServiceLayer

Returns the type of object the domain type's findFoo() or Locator.getId() expects to receive.

Overrides:

getIdType in class ServiceLayerDecorator

Parameters:

domainType - a domain entity type

Returns:

the type of the persistent id value used to represent the domain type

getRequestReturnType

public Type getRequestReturnType(Method contextMethod)

Description copied from class: ServiceLayer

Compute the return type for a method declared in a RequestContext by analyzing the generic method declaration.

Overrides:

getRequestReturnType in class ServiceLayerDecorator

getSetter

public Method getSetter(Class<?> domainType,
 String property)

Description copied from class: ServiceLayer

Determine the method to invoke when setting the given property.

Overrides:

getSetter in class ServiceLayerDecorator

Parameters:

domainType - a domain entity type

property - the name of the property to be set

Returns:

the Method that should be invoked to set the property or null if the method could not be located

requiresServiceLocator

public boolean requiresServiceLocator(Method contextMethod,
 Method domainMethod)

Description copied from class: ServiceLayer

Determines if the invocation of a domain method requires a ServiceLocator as the 0th parameter when passed into ServiceLayer.invoke(Method, Object...).

Overrides:

requiresServiceLocator in class ServiceLayerDecorator

Parameters:

contextMethod - a method defined in a RequestContext

domainMethod - a domain method

Returns:

true if a ServiceLocator is required

resolveClass

public Class<? extends BaseProxy> resolveClass(String typeToken)

Description copied from class: ServiceLayer

Given a type token previously returned from ServiceLayer.resolveTypeToken(Class), return the Class literal associated with the token.

Overrides:

resolveClass in class ServiceLayerDecorator

Parameters:

typeToken - a string token

Returns:

the type represented by the token

resolveClientType

public <T> Class<? extends T> resolveClientType(Class<?> domainClass,
 Class<T> clientType,
 boolean required)

Description copied from class: ServiceLayer

Determine the type used by the client code to represent a given domain type. If multiple proxy types have been mapped to the same domain type, the clientType parameter is used to ensure assignability.

Overrides:

resolveClientType in class ServiceLayerDecorator

Parameters:

domainClass - the server-side type to be transported to the client

clientType - the type to which the returned type must be assignable

required - if true and no mapping is available, throw an exception, otherwise the method will return null

Returns:

a class that represents domainClass on the client which is assignable to clientType

resolveDomainClass

public Class<?> resolveDomainClass(Class<?> clazz)

Description copied from class: ServiceLayer

Determine the domain (server-side) type that the given client type is mapped to.

Overrides:

resolveDomainClass in class ServiceLayerDecorator

Parameters:

clazz - a client-side type

Returns:

the domain type that clientType represents

resolveDomainMethod

public Method resolveDomainMethod(String operation)

Description copied from class: ServiceLayer

Return the domain service method associated with a RequestContext method declaration. The requestContextMethod will have been previously resolved by

invalid reference

#resolveRequestContextMethod(String, String)

.

Overrides:

resolveDomainMethod in class ServiceLayerDecorator

Returns:

the domain service method that should be invoked

resolveLocator

public Class<? extends Locator<?,?>> resolveLocator(Class<?> domainType)

Description copied from class: ServiceLayer

Return the type of Locator that should be used to access the given domain type.

Overrides:

resolveLocator in class ServiceLayerDecorator

Parameters:

domainType - a domain (server-side) type

Returns:

the type of Locator to use, or null if the type conforms to the RequestFactory entity protocol

resolveRequestContext

public Class<? extends RequestContext> resolveRequestContext(String operation)

Description copied from class: ServiceLayer

Find a RequestContext that should be used to fulfill the requested operation.

Overrides:

resolveRequestContext in class ServiceLayerDecorator

Parameters:

operation - the operation

Returns:

the RequestContext or null if no RequestContext exists that can fulfill the operation

resolveRequestContextMethod

public Method resolveRequestContextMethod(String operation)

Description copied from class: ServiceLayer

Find a RequestContext method declaration by name.

Overrides:

resolveRequestContextMethod in class ServiceLayerDecorator

Parameters:

operation - the operation's name

Returns:

the method declaration, or null if the method does not exist

resolveRequestFactory

public Class<? extends RequestFactory> resolveRequestFactory(String binaryName)

Description copied from class: ServiceLayer

Loads and validates a RequestFactory interface.

Overrides:

resolveRequestFactory in class ServiceLayerDecorator

Parameters:

binaryName - the RequestFactory's type token (usually the type's binary name)

Returns:

the RequestFactory type

resolveServiceClass

public Class<?> resolveServiceClass(Class<? extends RequestContext> requestContextClass)

Description copied from class: ServiceLayer

Given a RequestContext method, find the service class referenced in the Service or ServiceName annotation.

Overrides:

resolveServiceClass in class ServiceLayerDecorator

Parameters:

requestContextClass - a RequestContext interface

Returns:

the type of service to use

resolveServiceLocator

public Class<? extends ServiceLocator> resolveServiceLocator(Class<? extends RequestContext> requestContext)

Description copied from class: ServiceLayer

Given a RequestContext method declaration, resolve the ServiceLocator that should be used when invoking the domain method. This method will only be called if ServiceLayer.requiresServiceLocator(Method, Method) returned true for the associated domain method.

Overrides:

resolveServiceLocator in class ServiceLayerDecorator

Parameters:

requestContext - the RequestContext for which a ServiceLocator must be located

Returns:

the type of ServiceLocator to use

resolveTypeToken

public String resolveTypeToken(Class<? extends BaseProxy> domainClass)

Description copied from class: ServiceLayer

Return a string used to represent the given type in the wire protocol.

Overrides:

resolveTypeToken in class ServiceLayerDecorator

Parameters:

domainClass - a client-side EntityProxy or ValueProxy type

Returns:

the type token used to represent the proxy type