org.janusgraph.core.log

Enum Change

java.lang.Object

java.lang.Enum<Change>

org.janusgraph.core.log.Change

All Implemented Interfaces:

Serializable, Comparable<Change>

public enum Change
extends Enum<Change>

Identifies the type of change has undergone. Used in ChangeState to retrieve those elements that have been changed in a certain way.

ADDED applies to elements that have been added to the graph, REMOVED is for removed elements, and ANY is used to retrieve all elements that have undergone change.

ADDED and REMOVED are considered proper change states.

Author:

Matthias Broecheler ([email protected])

Enum Constant Summary

Enum Constants

Enum Constant and Description
ADDED
ANY
REMOVED

Method Summary

Modifier and Type	Method and Description
boolean	isProper()
static Change	valueOf(String name) Returns the enum constant of this type with the specified name.
static Change[]	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

ADDED

public static final Change ADDED

REMOVED

public static final Change REMOVED

ANY

public static final Change ANY

Method Detail

values

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

Returns:

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

valueOf

public static Change 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

isProper

public boolean isProper()