org.apache.tinkerpop.gremlin.process.traversal

Enum Order

java.lang.Object

java.lang.Enum<Order>

org.apache.tinkerpop.gremlin.process.traversal.Order

All Implemented Interfaces:

Serializable, Comparable<Order>, Comparator<Object>

public enum Order
extends Enum<Order>
implements Comparator<Object>

Provides Comparator instances for ordering traversers.

Author:

Marko A. Rodriguez (http://markorodriguez.com), Stephen Mallette (http://stephen.genoprime.com)

Enum Constant Summary

Enum Constants

Enum Constant and Description
decr Order in descending fashion.
incr Order in ascending fashion
shuffle Order in a random fashion.

Method Summary

Modifier and Type	Method and Description
abstract int	compare(Object first, Object second)
abstract Order	reversed() Produce the opposite representation of the current Order enum.
static Order	valueOf(String name) Returns the enum constant of this type with the specified name.
static Order[]	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

Methods inherited from interface java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, equals, naturalOrder, nullsFirst, nullsLast, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

Enum Constant Detail

incr

public static final Order incr

Order in ascending fashion

Since:

3.0.0-incubating

decr

public static final Order decr

Order in descending fashion.

Since:

3.0.0-incubating

shuffle

public static final Order shuffle

Order in a random fashion.

Since:

3.0.0-incubating

Method Detail

values

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

Returns:

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

valueOf

public static Order 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

compare

public abstract int compare(Object first,
                            Object second)

Specified by:

compare in interface Comparator<Object>

reversed

public abstract Order reversed()

Produce the opposite representation of the current Order enum.

Specified by:

reversed in interface Comparator<Object>