com.ibm.websphere.objectgrid
Enum LockMode

java.lang.Object
  java.lang.Enum<LockMode>
      com.ibm.websphere.objectgrid.LockMode

All Implemented Interfaces:

Serializable, Comparable<LockMode>

public enum LockMode
extends Enum<LockMode>

Specifies which lock mode to use to lock a key.

Since:

8.6

See Also:

ObjectMap.lock(Object, LockMode), ObjectMap.lockAll(java.util.List, LockMode)

Enum Constant Summary

EXCLUSIVE
Exclusive lock that can only be obtained if no one else is currently hold a lock.

SHARED
Shared lock that can be obtained if no one is currently holding an exclusive lock.

UPGRADABLE
Upgradable lock that can be obtained if no one is currently holding an upgradable or exclusive lock.

Method Summary

static LockMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static LockMode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

SHARED

public static final LockMode SHARED

Shared lock that can be obtained if no one is currently holding an exclusive lock.

UPGRADABLE

public static final LockMode UPGRADABLE

Upgradable lock that can be obtained if no one is currently holding an upgradable or exclusive lock.

EXCLUSIVE

public static final LockMode EXCLUSIVE

Exclusive lock that can only be obtained if no one else is currently hold a lock.

Method Detail

values

public static LockMode[] 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 (LockMode c : LockMode.values())
    System.out.println(c);

Returns:

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

valueOf

public static LockMode 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