```
public interface TopicDependencies
```
The dependencies for a topic.

Since:

23.03

Author:

Jonathan Knight 2002.09.10

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`static int`	`computeChannelCount(int cPartitions)`	Compute the channel count based on the supplied partition count.
`int`	`getConfiguredChannelCount()`	Returns the number of channels configured for the topic, or `PagedTopic.DEFAULT_CHANNEL_COUNT` to indicate that the topic uses the default number of channels.
`NamedTopic.ElementCalculator`	`getElementCalculator()`	Return the calculator used to calculate element sizes.
`long`	`getElementExpiryMillis()`	Obtain the expiry delay to apply to elements in ths topic.
`long`	`getMaxBatchSizeBytes()`	Return the maximum size of a batch.
`long`	`getNotificationTimeout()`	Returns the timeout that a subscriber will use when waiting for its first allocation of channels.
`long`	`getReconnectRetryMillis()`	Return the amount of time publishers and subscribers will wait between attempts to reconnect after being disconnected.
`long`	`getReconnectTimeoutMillis()`	Returns the maximum amount of time publishers and subscribers will attempt to reconnect after being disconnected.
`long`	`getReconnectWaitMillis()`	Return the amount of time publishers and subscribers will wait before attempting to reconnect after being disconnected.
`long`	`getSubscriberTimeoutMillis()`	Returns number of milliseconds within which a subscriber must issue a heartbeat or be forcefully considered closed.
`boolean`	`isAllowUnownedCommits()`	Returns `true` if the topic allows commits of a position in a channel to be made by subscribers that do not own the channel.
`boolean`	`isOnlyOwnedCommits()`	Returns `true` if the topic only allows commits of a position in a channel to be made by subscribers that own the channel.
`boolean`	`isRetainConsumed()`	Returns `true` if this topic retains messages after they have been committed or `false` if messages are removed after all known subscribers have committed them.

- Method Detail
  - getConfiguredChannelCount
```
int getConfiguredChannelCount()
```
    Returns the number of channels configured for the topic, or PagedTopic.DEFAULT_CHANNEL_COUNT to indicate that the topic uses the default number of channels.
    This number may be less than the actual number of channels, which is controlled by the TopicService, if another cluster member has configured a higher number of channels.
    The actual number of channels in use for a topic can be obtained by calling the TopicService.getChannelCount(String) method.
    
    Returns:
    
    the number of channels configured for the topic
  - computeChannelCount
```
static int computeChannelCount(int cPartitions)
```
    Compute the channel count based on the supplied partition count.
    
    Parameters:
    
    cPartitions - the partition count
    
    Returns:
    
    the channel count based on the supplied partition count
  - getElementExpiryMillis
```
long getElementExpiryMillis()
```
    Obtain the expiry delay to apply to elements in ths topic.
    
    Returns:
    
    the expiry delay to apply to elements in ths topic
  - getMaxBatchSizeBytes
```
long getMaxBatchSizeBytes()
```
    Return the maximum size of a batch.
    
    Returns:
    
    the max batch size
  - isRetainConsumed
```
boolean isRetainConsumed()
```
    Returns true if this topic retains messages after they have been committed or false if messages are removed after all known subscribers have committed them.
    
    Returns:
    
    true if this topic retains messages after they have been committed or false if messages are removed after all known subscribers have committed them
  - getSubscriberTimeoutMillis
```
long getSubscriberTimeoutMillis()
```
    Returns number of milliseconds within which a subscriber must issue a heartbeat or be forcefully considered closed.
    
    Returns:
    
    number of milliseconds within which a subscriber must issue a heartbeat
  - getNotificationTimeout
```
long getNotificationTimeout()
```
    Returns the timeout that a subscriber will use when waiting for its first allocation of channels.
    
    Returns:
    
    the timeout that a subscriber will use when waiting for its first allocation of channels
  - isAllowUnownedCommits
```
boolean isAllowUnownedCommits()
```
    Returns true if the topic allows commits of a position in a channel to be made by subscribers that do not own the channel.
    
    Returns:
    
    true if the topic allows commits of a position in a channel to be made by subscribers that do not own the channel
  - isOnlyOwnedCommits
```
boolean isOnlyOwnedCommits()
```
    Returns true if the topic only allows commits of a position in a channel to be made by subscribers that own the channel.
    
    Returns:
    
    true if the topic only allows commits of a position in a channel to be made by subscribers that own the channel
  - getElementCalculator
```
NamedTopic.ElementCalculator getElementCalculator()
```
    Return the calculator used to calculate element sizes.
    
    Returns:
    
    the calculator used to calculate element sizes
  - getReconnectTimeoutMillis
```
long getReconnectTimeoutMillis()
```
    Returns the maximum amount of time publishers and subscribers will attempt to reconnect after being disconnected.
    
    Returns:
    
    the maximum amount of time publishers and subscribers will attempt to reconnect after being disconnected
  - getReconnectRetryMillis
```
long getReconnectRetryMillis()
```
    Return the amount of time publishers and subscribers will wait between attempts to reconnect after being disconnected.
    
    Returns:
    
    the maximum amount of time publishers and subscribers will wait between attempts to reconnect after being disconnected
  - getReconnectWaitMillis
```
long getReconnectWaitMillis()
```
    Return the amount of time publishers and subscribers will wait before attempting to reconnect after being disconnected.
    
    Returns:
    
    the maximum amount of time publishers and subscribers will wait before attempting to reconnect after being disconnected

Interface TopicDependencies

Method Summary

Method Detail

getConfiguredChannelCount

computeChannelCount

getElementExpiryMillis

getMaxBatchSizeBytes

isRetainConsumed

getSubscriberTimeoutMillis

getNotificationTimeout

isAllowUnownedCommits

isOnlyOwnedCommits

getElementCalculator

getReconnectTimeoutMillis

getReconnectRetryMillis

getReconnectWaitMillis