Package org.jboss.ejb.client

Class EJBLocator<T>

java.lang.Object

org.jboss.ejb.client.EJBLocator<T>

Type Parameters:

T - the interface type

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

EJBHomeLocator, EntityEJBLocator, StatefulEJBLocator, StatelessEJBLocator

public abstract class EJBLocator<T>
extends Object
implements Serializable

An identifier for an EJB proxy invocation target instance, suitable for use as a hash key or a serialized token.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method	Description
StatefulEJBLocator<T>	asStateful()	Return this locator as a stateful locator, if it is one.
StatelessEJBLocator<T>	asStateless()	Return this locator as a stateless locator, if it is one.
boolean	canNarrowTo(Class<?> type)	Determine whether a narrowTo(Class) operation would succeed.
T	createProxyInstance(InvocationHandler invocationHandler)	Create a proxy instance using the cached proxy class.
boolean	equals(Object other)	Determine whether this object is equal to another.
boolean	equals(EJBLocator<?> other)	Determine whether this object is equal to another.
Affinity	getAffinity()	Get the locator affinity.
String	getAppName()	Get the application name.
String	getBeanName()	Get the EJB bean name.
String	getDistinctName()	Get the module distinct name.
EJBIdentifier	getIdentifier()	Get the EJB identifier for this locator.
String	getModuleName()	Get the module name.
Class<? extends T>	getProxyClass()	Get the proxy class for this locator.
Constructor<? extends T>	getProxyConstructor()	Get the proxy class constructor for this locator.
Class<T>	getViewType()	Get the view type of this locator.
int	hashCode()	Get the hash code for this instance.
boolean	isEntity()	Determine if this is an entity locator.
boolean	isHome()	Determine if this is a home locator.
boolean	isStateful()	Determine if this is a stateful locator.
boolean	isStateless()	Determine if this is a stateless locator.
<S extends javax.ejb.EJBObject> EntityEJBLocator<? extends S>	narrowAsEntity(Class<S> type)	Narrow this locator to the target type as a entity locator.
<S extends javax.ejb.EJBHome> EJBHomeLocator<? extends S>	narrowAsHome(Class<S> type)	Narrow this locator to the target type as a home locator.
<S> StatefulEJBLocator<? extends S>	narrowAsStateful(Class<S> type)	Narrow this locator to the target type as a stateful locator.
<S> StatelessEJBLocator<? extends S>	narrowAsStateless(Class<S> type)	Narrow this locator to the target type as a stateless locator.
<S> EJBLocator<? extends S>	narrowTo(Class<S> type)	Narrow this locator to the target type.
String	toString()
abstract EJBLocator<T>	withNewAffinity(Affinity affinity)	Create a copy of this locator, but with the new given affinity.
StatefulEJBLocator<T>	withSession(SessionID sessionId)	Create a copy of this locator, but with the given stateful session ID.
StatefulEJBLocator<T>	withSessionAndAffinity(SessionID sessionId, Affinity affinity)	Create a copy of this locator, but with the given affinity and stateful session ID.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Detail

withNewAffinity

public abstract EJBLocator<T> withNewAffinity(Affinity affinity)

Create a copy of this locator, but with the new given affinity.

Parameters:

affinity - the new affinity

Returns:

the new locator

withSession

public StatefulEJBLocator<T> withSession(SessionID sessionId)

Create a copy of this locator, but with the given stateful session ID. If this locator cannot be converted, an exception is thrown.

Parameters:

sessionId - the stateful session ID (must not be null)

Returns:

the new locator (not null)

withSessionAndAffinity

public StatefulEJBLocator<T> withSessionAndAffinity(SessionID sessionId,
                                                    Affinity affinity)

Create a copy of this locator, but with the given affinity and stateful session ID. If this locator cannot be converted, an exception is thrown.

Parameters:

sessionId - the stateful session ID (must not be null)

affinity - the new affinity (must not be null)

Returns:

the new locator (not null)

canNarrowTo

public boolean canNarrowTo(Class<?> type)

Determine whether a narrowTo(Class) operation would succeed.

Parameters:

type - the type to narrow to

Returns:

true if the narrow would succeed; false otherwise

narrowTo

public <S> EJBLocator<? extends S> narrowTo(Class<S> type)

Narrow this locator to the target type.

Type Parameters:

S - the target type

Parameters:

type - the target type class

Returns:

this instance, narrowed to the given type

Throws:

ClassCastException - if the view type cannot be cast to the given type

narrowAsHome

public <S extends javax.ejb.EJBHome> EJBHomeLocator<? extends S> narrowAsHome(Class<S> type)

Narrow this locator to the target type as a home locator.

Type Parameters:

S - the target type

Parameters:

type - the target type class

Returns:

this instance, narrowed to the given type and cast as a home locator

Throws:

ClassCastException - if the view type cannot be cast to the given type or if this locator is not a home locator

narrowAsEntity

public <S extends javax.ejb.EJBObject> EntityEJBLocator<? extends S> narrowAsEntity(Class<S> type)

Narrow this locator to the target type as a entity locator.

Type Parameters:

S - the target type

Parameters:

type - the target type class

Returns:

this instance, narrowed to the given type and cast as a entity locator

Throws:

ClassCastException - if the view type cannot be cast to the given type or if this locator is not a entity locator

narrowAsStateful

public <S> StatefulEJBLocator<? extends S> narrowAsStateful(Class<S> type)

Narrow this locator to the target type as a stateful locator.

Type Parameters:

S - the target type

Parameters:

type - the target type class

Returns:

this instance, narrowed to the given type and cast as a stateful locator

Throws:

ClassCastException - if the view type cannot be cast to the given type or if this locator is not a stateful locator

narrowAsStateless

public <S> StatelessEJBLocator<? extends S> narrowAsStateless(Class<S> type)

Narrow this locator to the target type as a stateless locator.

Type Parameters:

S - the target type

Parameters:

type - the target type class

Returns:

this instance, narrowed to the given type and cast as a stateless locator

Throws:

ClassCastException - if the view type cannot be cast to the given type or if this locator is not a stateless locator

asStateless

public StatelessEJBLocator<T> asStateless()

Return this locator as a stateless locator, if it is one.

Returns:

this instance, cast as a stateless locator

Throws:

ClassCastException - if this locator is not a stateless locator

asStateful

public StatefulEJBLocator<T> asStateful()

Return this locator as a stateful locator, if it is one.

Returns:

this instance, cast as a stateful locator

Throws:

ClassCastException - if this locator is not a stateful locator

isStateless

public boolean isStateless()

Determine if this is a stateless locator. If so, calls to asStateless() and narrowAsStateless(Class) will generally succeed.

Returns:

true if this locator is stateless, false otherwise

isStateful

public boolean isStateful()

Determine if this is a stateful locator. If so, calls to asStateful() and narrowAsStateful(Class) will generally succeed.

Returns:

true if this locator is stateful, false otherwise

isEntity

public boolean isEntity()

Determine if this is an entity locator. If so, calls to narrowAsEntity(Class) will generally succeed.

Returns:

true if this locator is an entity, false otherwise

isHome

public boolean isHome()

Determine if this is a home locator. If so, calls to narrowAsHome(Class) will generally succeed.

Returns:

true if this locator is a home, false otherwise

getViewType

public Class<T> getViewType()

Get the view type of this locator.

Returns:

the view type

getAppName

public String getAppName()

Get the application name.

Returns:

the application name

getModuleName

public String getModuleName()

Get the module name.

Returns:

the module name

getBeanName

public String getBeanName()

Get the EJB bean name.

Returns:

the EJB bean name

getDistinctName

public String getDistinctName()

Get the module distinct name.

Returns:

the module distinct name

getAffinity

public Affinity getAffinity()

Get the locator affinity.

Returns:

the locator affinity

getIdentifier

public EJBIdentifier getIdentifier()

Get the EJB identifier for this locator.

Returns:

the EJB identifier

hashCode

public final int hashCode()

Get the hash code for this instance.

Overrides:

hashCode in class Object

Returns:

the hash code for this instance

equals

public boolean equals(Object other)

Determine whether this object is equal to another.

Overrides:

equals in class Object

Parameters:

other - the other object

Returns:

true if they are equal, false otherwise

getProxyClass

public Class<? extends T> getProxyClass()

Get the proxy class for this locator.

Returns:

the proxy class

getProxyConstructor

public Constructor<? extends T> getProxyConstructor()

Get the proxy class constructor for this locator. A proxy class constructor accepts a single argument of type InvocationHandler.

Returns:

the proxy constructor

createProxyInstance

public T createProxyInstance(InvocationHandler invocationHandler)

Create a proxy instance using the cached proxy class.

Parameters:

invocationHandler - the invocation handler to use

Returns:

the proxy instance

equals

public boolean equals(EJBLocator<?> other)

Determine whether this object is equal to another.

Parameters:

other - the other object

Returns:

true if they are equal, false otherwise

toString

public String toString()

Overrides:

toString in class Object