javax.ejb
Enum LockType
java.lang.Object
java.lang.Enum<LockType>
javax.ejb.LockType
- All Implemented Interfaces:
- Serializable, Comparable<LockType>
public enum LockType
- extends Enum<LockType>
Concurrency lock type.
- READ : For read-only operations. Allows simultaneous access to
methods designated as READ, as long as no WRITE lock is held.
- WRITE : For write operations. The WRITE lock is exclusive.
- Since:
- 3.1
- Version:
- $Revision$
- Author:
- Carlo de Wolf
Method Summary |
static LockType |
valueOf(String name)
Returns the enum constant of this type with the specified name. |
static LockType[] |
values()
Returns an array containing the constants of this enum type, in
the order they are declared. |
READ
public static final LockType READ
WRITE
public static final LockType WRITE
values
public static LockType[] 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 (LockType c : LockType.values())
System.out.println(c);
- Returns:
- an array containing the constants of this enum type, in
the order they are declared
valueOf
public static LockType 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
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