AliasOrIndex.Alias (elasticsearch-extend 3.2 API)

java.lang.Object
- org.elasticsearch.cluster.metadata.AliasOrIndex.Alias

All Implemented Interfaces:

AliasOrIndex

Enclosing interface:

AliasOrIndex
```
public static class AliasOrIndex.Alias
extends Object
implements AliasOrIndex
```
Represents an alias and groups all IndexMetaData instances sharing the same alias name together.

Nested Class Summary
- Nested classes/interfaces inherited from interface org.elasticsearch.cluster.metadata.AliasOrIndex
  AliasOrIndex.Alias, AliasOrIndex.Index

Constructor Summary

Constructors
Constructor Description

Alias(AliasMetaData aliasMetaData, IndexMetaData indexMetaData)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`computeAndValidateWriteIndex()`
`String`	`getAliasName()`
`Iterable<Tuple<String,AliasMetaData>>`	`getConcreteIndexAndAliasMetaDatas()`	Returns the unique alias metadata per concrete index.
`AliasMetaData`	`getFirstAliasMetaData()`
`List<IndexMetaData>`	`getIndices()`
`IndexMetaData`	`getWriteIndex()`
`boolean`	`isAlias()`

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

- Constructor Detail
  - Alias
```
public Alias(AliasMetaData aliasMetaData,
             IndexMetaData indexMetaData)
```
- Method Detail
  - isAlias
```
public boolean isAlias()
```
    Specified by:
    
    isAlias in interface AliasOrIndex
    
    Returns:
    
    whether this an alias or concrete index
  - getAliasName
```
public String getAliasName()
```
  - getIndices
```
public List<IndexMetaData> getIndices()
```
    Specified by:
    
    getIndices in interface AliasOrIndex
    
    Returns:
    
    All IndexMetaData of all concrete indices this alias is referring to or if this is a concrete index its IndexMetaData
  - getWriteIndex
```
@Nullable
public IndexMetaData getWriteIndex()
```
  - getConcreteIndexAndAliasMetaDatas
```
public Iterable<Tuple<String,AliasMetaData>> getConcreteIndexAndAliasMetaDatas()
```
    Returns the unique alias metadata per concrete index. (note that although alias can point to the same concrete indices, each alias reference may have its own routing and filters)
  - getFirstAliasMetaData
```
public AliasMetaData getFirstAliasMetaData()
```
  - computeAndValidateWriteIndex
```
public void computeAndValidateWriteIndex()
```