AprLibrary

java.lang.Object
- org.apache.mina.transport.socket.apr.AprLibrary

```
class AprLibrary
extends java.lang.Object
```
Internal singleton used for initializing correctly the APR native library and the associated root memory pool. It'll finalize nicely the native resources (libraries and memory pools). Each memory pool used in the APR transport module needs to be children of the root pool AprLibrary#getRootPool().

Field Summary

Fields
Modifier and Type Field Description

private static AprLibrary library

private long pool

Constructor Summary

Constructors
Modifier Constructor Description

private AprLibrary()
APR library singleton constructor.

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`finalize()`
`(package private) static AprLibrary`	`getInstance()`	get the shared instance of APR library, if none, initialize one
`(package private) long`	`getRootPool()`	get the package wide root pool, the mother of all the pool created in APR transport module.
`private static void`	`initialize()`	initialize the APR Library by loading the associated native libraries and creating the associated singleton
`(package private) static boolean`	`isInitialized()`	is the APR library was initialized.

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

- Field Detail
  - library
```
private static AprLibrary library
```
  - pool
```
private final long pool
```
- Constructor Detail
  - AprLibrary
```
private AprLibrary()
```
    APR library singleton constructor. Called only when accessing the singleton the first time. It's initializing an APR memory pool for the whole package (a.k.a mother or root pool).
- Method Detail
  - getInstance
```
static AprLibrary getInstance()
```
    get the shared instance of APR library, if none, initialize one
    
    Returns:
    
    the current APR library singleton
  - initialize
```
private static void initialize()
```
    initialize the APR Library by loading the associated native libraries and creating the associated singleton
  - isInitialized
```
static boolean isInitialized()
```
    is the APR library was initialized.
    
    Returns:
    
    true if the Library is initialized, false otherwise
  - finalize
```
protected void finalize()
                 throws java.lang.Throwable
```
    Overrides:
    
    finalize in class java.lang.Object
    
    Throws:
    
    java.lang.Throwable
  - getRootPool
```
long getRootPool()
```
    get the package wide root pool, the mother of all the pool created in APR transport module.
    
    Returns:
    
    number identifying the root pool