ProtonPooledTagGenerator (Qpid ProtonJ2 Parent 1.0.0-M7 API)

java.lang.Object
- org.apache.qpid.protonj2.engine.impl.ProtonDeliveryTagGenerator
- - org.apache.qpid.protonj2.engine.impl.ProtonSequentialTagGenerator
  - - org.apache.qpid.protonj2.engine.impl.ProtonPooledTagGenerator

All Implemented Interfaces:

DeliveryTagGenerator
```
public class ProtonPooledTagGenerator
extends ProtonSequentialTagGenerator
```
Built in Transfer DeliveryTag generator that uses a fixed size tag pool to reduce GC overhead by reusing tags that have been released from settled messages. When not using cached tags the generator creates new tags using a running tag counter of type Long that assumes that when it wraps the user has already release all tags within the lower range of the tag counter.

Nested Class Summary
- Nested classes/interfaces inherited from class org.apache.qpid.protonj2.engine.impl.ProtonSequentialTagGenerator
  ProtonSequentialTagGenerator.ProtonNumericDeliveryTag
- Nested classes/interfaces inherited from class org.apache.qpid.protonj2.engine.impl.ProtonDeliveryTagGenerator
  ProtonDeliveryTagGenerator.BUILTIN

Field Summary

Fields
Modifier and Type Field Description

static int DEFAULT_MAX_NUM_POOLED_TAGS
The default number of pooled transfer tags for this generator.
- Fields inherited from class org.apache.qpid.protonj2.engine.impl.ProtonSequentialTagGenerator
  nextTagId

Constructor Summary

Constructors
Constructor	Description
`ProtonPooledTagGenerator()`	Creates a new `ProtonPooledTagGenerator` instance with the default pool size.
`ProtonPooledTagGenerator(int poolSize)`	Creates a new `ProtonPooledTagGenerator` instance with the given pool size.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`DeliveryTag`	`nextTag()`	Creates and returns the next `DeliveryTag` tag that should be used when populating an `OutgoingDelivery`.

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

- Field Detail
  - DEFAULT_MAX_NUM_POOLED_TAGS
```
public static final int DEFAULT_MAX_NUM_POOLED_TAGS
```
    The default number of pooled transfer tags for this generator.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - ProtonPooledTagGenerator
```
public ProtonPooledTagGenerator()
```
    Creates a new ProtonPooledTagGenerator instance with the default pool size.
  - ProtonPooledTagGenerator
```
public ProtonPooledTagGenerator(int poolSize)
```
    Creates a new ProtonPooledTagGenerator instance with the given pool size.
    
    Parameters:
    
    poolSize - The size of the transfer tag pool that should be allocated for this generator.
- Method Detail
  - nextTag
```
public DeliveryTag nextTag()
```
    Description copied from interface: DeliveryTagGenerator
    
    Creates and returns the next DeliveryTag tag that should be used when populating an OutgoingDelivery.
    
    Specified by:
    
    nextTag in interface DeliveryTagGenerator
    
    Overrides:
    
    nextTag in class ProtonSequentialTagGenerator
    
    Returns:
    
    the next DeliveryTag to use for an OutgoingDelivery.