org.treetank.access

Enum NodeWriteTrx.HashKind

java.lang.Object

java.lang.Enum<NodeWriteTrx.HashKind>

org.treetank.access.NodeWriteTrx.HashKind

All Implemented Interfaces:

Serializable, Comparable<NodeWriteTrx.HashKind>

Enclosing class:

NodeWriteTrx

public static enum NodeWriteTrx.HashKind
extends Enum<NodeWriteTrx.HashKind>

How is the Hash for this storage computed?

Enum Constant Summary

Enum Constants

Enum Constant and Description
None No hash structure after all.
Postorder Postorder hash, all nodes on ancestor plus postorder are at least read.
Rolling Rolling hash, only nodes on ancestor axis are touched.

Method Summary

Methods

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

Rolling

public static final NodeWriteTrx.HashKind Rolling

Rolling hash, only nodes on ancestor axis are touched.

Postorder

public static final NodeWriteTrx.HashKind Postorder

Postorder hash, all nodes on ancestor plus postorder are at least read.

None

public static final NodeWriteTrx.HashKind None

No hash structure after all.

Method Detail

values

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

Returns:

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

valueOf

public static NodeWriteTrx.HashKind 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