AliasMessage (Analytics for Java (Core) 3.5.4 API)

java.lang.Object
- com.segment.analytics.messages.AliasMessage

All Implemented Interfaces:

Message
```
public abstract class AliasMessage
extends Object
implements Message
```
The alias message is used to merge two user identities, effectively connecting two sets of user data as one. This is an advanced method, but it is required to manage user identities successfully in some of our integrations.
Use builder(java.lang.String) to construct your own instances.

See Also:

Alias

Nested Class Summary

Nested Classes
Modifier and Type Class Description

static class AliasMessage.Builder
Fluent API for creating AliasMessage instances.
- Nested classes/interfaces inherited from interface com.segment.analytics.messages.Message
  Message.Type

Constructor Summary

Constructors
Constructor Description

AliasMessage()

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`static AliasMessage.Builder`	`builder(String previousId)`	Start building an `AliasMessage` instance.
`abstract String`	`previousId()`
`AliasMessage.Builder`	`toBuilder()`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.segment.analytics.messages.Message
anonymousId, context, integrations, messageId, sentAt, timestamp, type, userId

- Constructor Detail
  - AliasMessage
```
public AliasMessage()
```
- Method Detail
  - builder
```
public static AliasMessage.Builder builder(String previousId)
```
    Start building an AliasMessage instance.
    
    Parameters:
    
    previousId - The previous unique identifier for the user. See the Previous ID field docs for more detail.
    
    Throws:
    
    IllegalArgumentException - if the previousId is null or empty
  - previousId
```
public abstract String previousId()
```
  - toBuilder
```
public AliasMessage.Builder toBuilder()
```