SubscriptionInitialPosition (Pulsar Client :: API 2.9.4 API)

java.lang.Object
- java.lang.Enum<SubscriptionInitialPosition>
- - org.apache.pulsar.client.api.SubscriptionInitialPosition

所有已实现的接口:

java.io.Serializable, java.lang.Comparable<SubscriptionInitialPosition>
```
@Public
@Stable
public enum SubscriptionInitialPosition
extends java.lang.Enum<SubscriptionInitialPosition>
```
When creating a consumer, if the subscription does not exist, a new subscription will be created. By default the subscription will be created at the end of the topic. See #subscriptionInitialPosition(SubscriptionInitialPosition) to configure the initial position behavior.

枚举常量概要

枚举常量
枚举常量	说明
`Earliest`	The earliest position which means the start consuming position will be the first message.
`Latest`	The latest position which means the start consuming position will be the last message.

方法概要

所有方法静态方法实例方法具体方法
修饰符和类型	方法	说明
`int`	`getValue()`
`static SubscriptionInitialPosition`	`valueOf(java.lang.String name)`	返回带有指定名称的该类型的枚举常量。
`static SubscriptionInitialPosition[]`	`values()`	按照声明该枚举类型的常量的顺序, 返回包含这些常量的数组。

从类继承的方法 java.lang.Enum
clone, compareTo, 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
  - Latest
```
public static final SubscriptionInitialPosition Latest
```
    The latest position which means the start consuming position will be the last message.
  - Earliest
```
public static final SubscriptionInitialPosition Earliest
```
    The earliest position which means the start consuming position will be the first message.
- 方法详细资料
  - values
```
public static SubscriptionInitialPosition[] values()
```
    按照声明该枚举类型的常量的顺序, 返回包含这些常量的数组。该方法可用于迭代常量, 如下所示:
    for (SubscriptionInitialPosition c : SubscriptionInitialPosition.values()) System.out.println(c);
    返回:
    
    按照声明该枚举类型的常量的顺序返回的包含这些常量的数组
  - valueOf
```
public static SubscriptionInitialPosition valueOf(java.lang.String name)
```
    返回带有指定名称的该类型的枚举常量。字符串必须与用于声明该类型的枚举常量的标识符完全匹配。(不允许有多余的空格字符。)
    
    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:
    
    java.lang.IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量
    
    java.lang.NullPointerException - 如果参数为空值
  - getValue
```
public final int getValue()
```