Class EventMetadata

java.lang.Object

top.magstar.framework.events.models.EventMetadata

public class EventMetadata
extends Object

事件元数据 - 包含事件的附加信息

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	EventMetadata.Builder

Method Summary

Modifier and Type	Method	Description
static EventMetadata.Builder	builder()	创建 Builder
static EventMetadata	create(long eventId)	创建简单的事件元数据
static EventMetadata	create(String source)	创建带来源的事件元数据
static EventMetadata	create(String source, Map<String,Object> attributes, int priority)	创建完整的事件元数据
boolean	equals(Object o)
<T> T	getAttribute(String key)	获取属性值（可能为null）
<T> T	getAttribute(String key, T defaultValue)	获取属性值
int	getAttributeCount()	获取属性数量
Map<String,Object>	getAttributes()
UUID	getEventId()
int	getPriority()
String	getSource()
LocalDateTime	getTimestamp()
String	getTraceId()
boolean	hasAttribute(String key)	检查是否包含指定属性
int	hashCode()
String	toString()
EventMetadata	withAttribute(String key, Object value)	创建副本并添加属性
EventMetadata	withoutAttribute(String key)	创建副本并移除属性
EventMetadata	withPriority(int priority)	创建副本并设置优先级
EventMetadata	withTraceId(String traceId)	创建副本并设置跟踪ID

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Method Details

create

public static EventMetadata create(long eventId)

创建简单的事件元数据

create

public static EventMetadata create(String source)

创建带来源的事件元数据

create

public static EventMetadata create(String source,
 Map<String,Object> attributes,
 int priority)

创建完整的事件元数据

builder

public static EventMetadata.Builder builder()

创建 Builder

getEventId

public UUID getEventId()

getTimestamp

public LocalDateTime getTimestamp()

getSource

public String getSource()

getAttributes

public Map<String,Object> getAttributes()

getPriority

public int getPriority()

getTraceId

public String getTraceId()

getAttribute

public <T> T getAttribute(String key,
 T defaultValue)

获取属性值

getAttribute

public <T> T getAttribute(String key)

获取属性值（可能为null）

hasAttribute

public boolean hasAttribute(String key)

检查是否包含指定属性

getAttributeCount

public int getAttributeCount()

获取属性数量

withAttribute

public EventMetadata withAttribute(String key,
 Object value)

创建副本并添加属性

withoutAttribute

public EventMetadata withoutAttribute(String key)

创建副本并移除属性

withPriority

public EventMetadata withPriority(int priority)

创建副本并设置优先级

withTraceId

public EventMetadata withTraceId(String traceId)

创建副本并设置跟踪ID

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

toString

public String toString()

Overrides:

toString in class Object