程序包 org.apache.pulsar.common.policies.data

Enum Class SchemaCompatibilityStrategy

java.lang.Object

java.lang.Enum<SchemaCompatibilityStrategy>

org.apache.pulsar.common.policies.data.SchemaCompatibilityStrategy

所有已实现的接口:

Serializable, Comparable<SchemaCompatibilityStrategy>, Constable

public enum SchemaCompatibilityStrategy
extends Enum<SchemaCompatibilityStrategy>

Pulsar Schema compatibility strategy.

嵌套类概要

从类继承的嵌套类/接口 java.lang.Enum

Enum.EnumDesc<E extends Enum<E>>

枚举常量概要

枚举常量

枚举常量	说明
ALWAYS_COMPATIBLE	Always compatible.
ALWAYS_INCOMPATIBLE	Always incompatible.
BACKWARD	Messages written by an old schema can be read by a new schema.
BACKWARD_TRANSITIVE	Be similar to BACKWARD, BACKWARD_TRANSITIVE ensure all previous version schema can be read by the new schema.
FORWARD	Messages written by a new schema can be read by an old schema.
FORWARD_TRANSITIVE	Be similar to FORWARD, FORWARD_TRANSITIVE ensure new schema can be ready by all previous version schema.
FULL	Equivalent to both FORWARD and BACKWARD.
FULL_TRANSITIVE	Equivalent to both FORWARD_TRANSITIVE and BACKWARD_TRANSITIVE.
UNDEFINED	Undefined.

方法概要

修饰符和类型	方法	说明
static SchemaCompatibilityStrategy	fromAutoUpdatePolicy(SchemaAutoUpdateCompatibilityStrategy strategy)
static boolean	isUndefined(SchemaCompatibilityStrategy strategy)
static SchemaCompatibilityStrategy	valueOf(String name)	Returns the enum constant of this class with the specified name.
static SchemaCompatibilityStrategy[]	values()	Returns an array containing the constants of this enum class, in the order they are declared.

从类继承的方法 java.lang.Enum

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

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

UNDEFINED

public static final SchemaCompatibilityStrategy UNDEFINED

Undefined.

ALWAYS_INCOMPATIBLE

public static final SchemaCompatibilityStrategy ALWAYS_INCOMPATIBLE

Always incompatible.

ALWAYS_COMPATIBLE

public static final SchemaCompatibilityStrategy ALWAYS_COMPATIBLE

Always compatible.

BACKWARD

public static final SchemaCompatibilityStrategy BACKWARD

Messages written by an old schema can be read by a new schema.

FORWARD

public static final SchemaCompatibilityStrategy FORWARD

Messages written by a new schema can be read by an old schema.

FULL

public static final SchemaCompatibilityStrategy FULL

Equivalent to both FORWARD and BACKWARD.

BACKWARD_TRANSITIVE

public static final SchemaCompatibilityStrategy BACKWARD_TRANSITIVE

Be similar to BACKWARD, BACKWARD_TRANSITIVE ensure all previous version schema can be read by the new schema.

FORWARD_TRANSITIVE

public static final SchemaCompatibilityStrategy FORWARD_TRANSITIVE

Be similar to FORWARD, FORWARD_TRANSITIVE ensure new schema can be ready by all previous version schema.

FULL_TRANSITIVE

public static final SchemaCompatibilityStrategy FULL_TRANSITIVE

Equivalent to both FORWARD_TRANSITIVE and BACKWARD_TRANSITIVE.

方法详细资料

values

public static SchemaCompatibilityStrategy[] values()

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

返回:

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

valueOf

public static SchemaCompatibilityStrategy 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.)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - if this enum class has no constant with the specified name

NullPointerException - 如果参数为空值

isUndefined

public static boolean isUndefined(SchemaCompatibilityStrategy strategy)

fromAutoUpdatePolicy

public static SchemaCompatibilityStrategy fromAutoUpdatePolicy(SchemaAutoUpdateCompatibilityStrategy strategy)