Package org.apache.commons.configuration2.sync

# Enum LockMode

java.lang.Object
java.lang.Enum<LockMode>
org.apache.commons.configuration2.sync.LockMode

All Implemented Interfaces:
  `Serializable`, `Comparable<LockMode>`

public enum LockMode extends Enum<LockMode>

An enumeration used by `SynchronizerSupport` to specify how an object is locked.

The `SynchronizerSupport` interface allows locking an object. This can be done in different ways controlling the level of concurrency still possible with the object. One of the constants defined here can be passed in when calling the `lock()` method of a `SynchronizerSupport` object. (Note that at the end of the day it is up to a concrete implementation of `Synchronizer` how these lock modes are interpreted.)

Since:
  2.0

- ## Enum Constant Summary

  Enum Constants
  Enum Constant
  Description
  `READ`
  Lock mode READ.
  `WRITE`
  Lock mode WRITE.

- ## Method Summary

  Modifier and Type
  Method
  Description
  `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 Details

  - ### READ

    public static final LockMode READ
    Lock mode READ. The object is accessed in a read-only manner. Typically, this means that other read locks can be granted while concurrent writes are not permitted.

  - ### WRITE

    public static final LockMode WRITE
    Lock mode WRITE. The object is updated. This usually means that this object is exclusively locked. Attempts of other readers or writers will block until the current update operation is complete.

- ## Method Details

  - ### values

    public static LockMode[] values()
    Returns an array containing the constants of this enum type, in the order they are declared.
    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