NewTopic (clients 7.5.12-ce API)

java.lang.Object
- org.apache.kafka.clients.admin.NewTopic

```
public class NewTopic
extends Object
```
A new topic to be created via Admin.createTopics(Collection).

Constructor Summary

Constructors
Constructor and Description
`NewTopic(String name, int numPartitions, short replicationFactor)` A new topic with the specified replication factor and number of partitions.
`NewTopic(String name, Map<Integer,List<Integer>> replicasAssignments)` A new topic with the specified replica assignment configuration.
`NewTopic(String name, Optional<Integer> numPartitions, Optional<Short> replicationFactor)` A new topic that optionally defaults `numPartitions` and `replicationFactor` to the broker configurations for `num.partitions` and `default.replication.factor` respectively.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`Map<String,String>`	`configs()` The configuration for the new topic or null if no configs ever specified.
`NewTopic`	`configs(Map<String,String> configs)` Set the configuration to use on the new topic.
`boolean`	`equals(Object o)`
`int`	`hashCode()`
`Optional<NewMirrorTopic>`	`mirror()` The mirror information for topic creation.
`NewTopic`	`mirror(Optional<NewMirrorTopic> mirror)` Sets the mirror information for topic creation.
`String`	`name()` The name of the topic to be created.
`int`	`numPartitions()` The number of partitions for the new topic or -1 if a replica assignment has been specified.
`Map<Integer,List<Integer>>`	`replicasAssignments()` A map from partition id to replica ids (i.e.
`short`	`replicationFactor()` The replication factor for the new topic or -1 if a replica assignment has been specified.
`String`	`toString()`

Methods inherited from class java.lang.Object
getClass, notify, notifyAll, wait, wait, wait

- Constructor Detail
  - NewTopic
```
public NewTopic(String name,
                int numPartitions,
                short replicationFactor)
```
    A new topic with the specified replication factor and number of partitions.
  - NewTopic
```
public NewTopic(String name,
                Optional<Integer> numPartitions,
                Optional<Short> replicationFactor)
```
    A new topic that optionally defaults numPartitions and replicationFactor to the broker configurations for num.partitions and default.replication.factor respectively.
  - NewTopic
```
public NewTopic(String name,
                Map<Integer,List<Integer>> replicasAssignments)
```
    A new topic with the specified replica assignment configuration.
    Parameters:
    name - the topic name.
    replicasAssignments - a map from partition id to replica ids (i.e. broker ids). Although not enforced, it is generally a good idea for all partitions to have the same number of replicas.
- Method Detail
  - name
```
public String name()
```
    The name of the topic to be created.
  - numPartitions
```
public int numPartitions()
```
    The number of partitions for the new topic or -1 if a replica assignment has been specified.
  - replicationFactor
```
public short replicationFactor()
```
    The replication factor for the new topic or -1 if a replica assignment has been specified.
  - replicasAssignments
```
public Map<Integer,List<Integer>> replicasAssignments()
```
    A map from partition id to replica ids (i.e. broker ids) or null if the number of partitions and replication factor have been specified instead.
  - configs
```
public NewTopic configs(Map<String,String> configs)
```
    Set the configuration to use on the new topic.
    Parameters:
    configs - The configuration map.
    Returns:
    This NewTopic object.
  - configs
```
public Map<String,String> configs()
```
    The configuration for the new topic or null if no configs ever specified.
  - mirror
```
public NewTopic mirror(Optional<NewMirrorTopic> mirror)
```
    Sets the mirror information for topic creation.
  - mirror
```
public Optional<NewMirrorTopic> mirror()
```
    The mirror information for topic creation.
  - toString
```
public String toString()
```
    Overrides:
    toString in class Object
  - equals
```
public boolean equals(Object o)
```
    Overrides:
    equals in class Object
  - hashCode
```
public int hashCode()
```
    Overrides:
    hashCode in class Object

Class NewTopic

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

NewTopic

NewTopic

NewTopic

Method Detail

name

numPartitions

replicationFactor

replicasAssignments

configs

configs

mirror

mirror

toString

equals

hashCode