Direction (Neo4j - Graph Database Kernel Distribution 1.1 API)
Keywords: org.neo4j.graphdb.Direction class

Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | ENUM CONSTANTS | FIELD | METHOD | DETAIL: ENUM CONSTANTS | FIELD | METHOD

## org.neo4j.graphdb
Enum Direction

    java.lang.Object
      java.lang.Enum<Direction>
          org.neo4j.graphdb.Direction

All Implemented Interfaces:
  Serializable, Comparable<Direction>

    public enum Direction

extends Enum<Direction>

Defines relationship directions used when getting relationships from a node or when creating traversers.

A relationship has a direction from a node's point of view. If a node is the start node of a relationship it will be an `OUTGOING` relationship from that node's point of view. If a node is the end node of a relationship it will be an `INCOMING` relationship from that node's point of view. The `BOTH` direction is used when direction is of no importance, such as "give me all" or "traverse all" relationships that are either `OUTGOING` or `INCOMING`.

Enum Constant Summary
`BOTH` Defines both incoming and outgoing relationships.
`INCOMING` Defines incoming relationships.
`OUTGOING` Defines outgoing relationships.

Method Summary
`Direction` | `reverse()` Reverses the direction returning `INCOMING` if this equals `OUTGOING`, `OUTGOING` if this equals `INCOMING` or `BOTH` if this equals `BOTH`.
`static Direction` | `valueOf(String name)` Returns the enum constant of this type with the specified name.
`static Direction[]` | `values()` Returns an array containing the constants of this enum type, in the order they're declared.

Methods inherited from class java.lang.Enum
`clone, compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf`

Methods inherited from class java.lang.Object
`finalize, getClass, notify, notifyAll, wait, wait, wait`

Enum Constant Detail

### OUTGOING

    public static final Direction OUTGOING

  Defines outgoing relationships.

### INCOMING

    public static final Direction INCOMING

  Defines incoming relationships.

### BOTH

    public static final Direction BOTH

  Defines both incoming and outgoing relationships.

Method Detail

### values

    public static final Direction[] values()

  Returns an array containing the constants of this enum type, in the order they're declared. This method may be used to iterate over the constants as follows:

      for(Direction c : Direction.values())
              System.out.println(c);

  Returns:
    an array containing the constants of this enum type, in the order they're declared

### valueOf

    public static Direction 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

### reverse

    public Direction reverse()

  Reverses the direction returning `INCOMING` if this equals `OUTGOING`, `OUTGOING` if this equals `INCOMING` or `BOTH` if this equals `BOTH`.

  Returns:
    The reversed direction.

Overview | Package | Class | Use | Tree | Deprecated | Index | Help
PREV CLASS NEXT CLASS | FRAMES NO FRAMES
SUMMARY: NESTED | ENUM CONSTANTS | FIELD | METHOD | DETAIL: ENUM CONSTANTS | FIELD | METHOD

Copyright © 2010 Neo4j. All Rights Reserved.