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## kieker.monitoring.core.registry
Enum SessionRegistry

    java.lang.Object
      java.lang.Enum<SessionRegistry>
          kieker.monitoring.core.registry.SessionRegistry

All Implemented Interfaces:
  Serializable, Comparable<SessionRegistry>

    public enum SessionRegistry

extends Enum<SessionRegistry>

Since:
  1.3
Author:
  Andre van Hoorn, Jan Waller

Enum Constant Summary
`INSTANCE` The singleton instance.

Method Summary
`String` | `recallThreadLocalSessionId()` This method returns the thread-local traceid previously registered using the method registerTraceId(curTraceId).
`void` | `storeThreadLocalSessionId(String sessionId)` Used by the spring aspect to explicitly register a sessionid that is to be collected within a servlet method (that knows the request object).
`void` | `unsetThreadLocalSessionId()` This method unsets a previously registered sessionid.
`static SessionRegistry` | `valueOf(String name)` Returns the enum constant of this type with the specified name.
`static SessionRegistry[]` | `values()` Returns an array containing the constants of this enum type, in the order they are declared.

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

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

Enum Constant Detail

### INSTANCE

    public static final SessionRegistry INSTANCE

  The singleton instance.

Method Detail

### values

    public static SessionRegistry[] values()

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

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

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

### valueOf

    public static SessionRegistry 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
    `NullPointerException` - if the argument is null

### storeThreadLocalSessionId

    public final void storeThreadLocalSessionId(String sessionId)

  Used by the spring aspect to explicitly register a sessionid that is to be collected within a servlet method (that knows the request object). The thread is responsible for invalidating the stored curTraceId using the method unsetThreadLocalSessionId()!

  Parameters:
    `sessionId` - The session ID.

### recallThreadLocalSessionId

    public final String recallThreadLocalSessionId()

  This method returns the thread-local traceid previously registered using the method registerTraceId(curTraceId).

  Returns:
    the sessionid. null if no session registered.

### unsetThreadLocalSessionId

    public final void unsetThreadLocalSessionId()

  This method unsets a previously registered sessionid.

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