Package org.apache.cassandra.schema

Enum Class Difference

java.lang.Object

java.lang.Enum<Difference>

org.apache.cassandra.schema.Difference

All Implemented Interfaces:

Serializable, Comparable<Difference>, Constable

public enum Difference
extends Enum<Difference>

Nested Class Summary

Nested classes/interfaces inherited from class java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

Enum Constant Summary

Enum Constants

Enum Constant	Description
DEEP	Two schema objects are considered to differ DEEP-ly if one or more of their nested schema objects differ.
SHALLOW	Two schema objects are considered to differ DEEP-ly if their direct structure is altered.

Method Summary

Modifier and Type	Method	Description
static Difference	valueOf(String name)	Returns the enum constant of this class with the specified name.
static Difference[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, describeConstable, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Details

DEEP

public static final Difference DEEP

Two schema objects are considered to differ DEEP-ly if one or more of their nested schema objects differ. For example, if a table T has a column c of type U, where U is a user defined type, then upon altering U table T0 (before alter) will differ DEEP-ly from table T1 (after alter).

SHALLOW

public static final Difference SHALLOW

Two schema objects are considered to differ DEEP-ly if their direct structure is altered. For example, if a table T is altered to add a new column, a different compaction strategy, or a new description, then it will differ SHALLOW-ly from the original.

Method Details

values

public static Difference[] values()

Returns an array containing the constants of this enum class, in the order they are declared.

Returns:

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

valueOf

public static Difference valueOf(String name)

Returns the enum constant of this class with the specified name. The string must match exactly an identifier used to declare an enum constant in this class. (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 class has no constant with the specified name

NullPointerException - if the argument is null