ScopeType (JBoss Seam API Documentation) - JBoss Seam 1.2.0 API 英文版文档

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org.jboss.seam
Enum ScopeType

java.lang.Object
  java.lang.Enum<ScopeType>
      org.jboss.seam.ScopeType

All Implemented Interfaces:: Serializable, Comparable<ScopeType>

public enum ScopeType
extends Enum<ScopeType>
extends Enum<ScopeType>

The available scopes (contexts).

Version:: $Revision: 1.11 $
Author:: Thomas Heute

Enum Constant Summary

APPLICATION
          The application context (Servlet context.)

BUSINESS_PROCESS
          The business process context.

CONVERSATION
          The conversation context.

EVENT
          The event (request) context.

METHOD
          The method context.

PAGE
          The page context.

SESSION
          The session context.

STATELESS
          The stateless psuedo-context.

UNSPECIFIED
          Indicates that the scope is implied.

Method Summary

Context getContext()


String getPrefix()


boolean isContextActive()


static ScopeType valueOf(String name)
          Returns the enum constant of this type with the specified name.

static ScopeType[] values()
          Returns an array containing the constants of this enum type, in the order they're declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

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

Enum Constant Summary
`APPLICATION` The application context (Servlet context.)
`BUSINESS_PROCESS` The business process context.
`CONVERSATION` The conversation context.
`EVENT` The event (request) context.
`METHOD` The method context.
`PAGE` The page context.
`SESSION` The session context.
`STATELESS` The stateless psuedo-context.
`UNSPECIFIED` Indicates that the scope is implied.

Method Summary
`Context`	`getContext()`
`String`	`getPrefix()`
`boolean`	`isContextActive()`
`static ScopeType`	`valueOf(String name)` Returns the enum constant of this type with the specified name.
`static ScopeType[]`	`values()` Returns an array containing the constants of this enum type, in the order they're declared.

Methods inherited from class java.lang.Enum
`clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, wait, wait, wait`

Enum Constant Detail

STATELESS

public static final ScopeType STATELESS

The stateless psuedo-context.

METHOD

public static final ScopeType METHOD

The method context. Each call to a session bean or JavaBean component puts a new method context onto the stack of method contexts associated with the current thread. The context is destroyed (and the stack popped) when the method returns.

EVENT

public static final ScopeType EVENT

The event (request) context. Spans a server request, from restore view to render response.

PAGE

public static final ScopeType PAGE

The page context. Begins during the invoke application phase prior to rendering a page, and lasts until the end of any invoke application phase of a faces request originating from that page. Non-faces requests do not propagate the page scope.

CONVERSATION

public static final ScopeType CONVERSATION

The conversation context. Spans multiple requests from the same browser window, demarcated by @Begin and @End methods. A conversation context is propagated by any faces request, or by any request that specifies a conversation id as a request parameter. The conversation context is not available during the restore view phase.

SESSION

public static final ScopeType SESSION

The session context. (A servlet login session.)

APPLICATION

public static final ScopeType APPLICATION

The application context (Servlet context.)

BUSINESS_PROCESS

public static final ScopeType BUSINESS_PROCESS

The business process context. Spans multiple conversations with multiple users, demarcated by the start and end states of the business process definition.

UNSPECIFIED

public static final ScopeType UNSPECIFIED

Indicates that the scope is implied.

Method Detail

values

public static final ScopeType[] values()

Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:

for(ScopeType c : ScopeType.values())
        System.out.println(c);

Returns:: an array containing the constants of this enum type, in the order they're declared

valueOf

public static ScopeType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:: name - the name of the enum constant to be returned.
Returns:: the enum constant with the specified name
Throws:: IllegalArgumentException - if this enum type has no constant with the specified name

isContextActive

public boolean isContextActive()

getContext

public Context getContext()

Returns:: the Context object for this scope

getPrefix

public String getPrefix()