org.apache.xml.utils

## Class ObjectPool

- java.lang.Object
- - org.apache.xml.utils.ObjectPool

- All Implemented Interfaces:
    java.io.Serializable

      public class ObjectPool
      extends java.lang.Object
      implements java.io.Serializable

  Pool of object of a given type to pick from to help memory usage
  See Also:
    Serialized Form
  Usage:
    **For internal use only**

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `ObjectPool()` Constructor ObjectPool
    `ObjectPool(java.lang.Class type)` Constructor ObjectPool
    `ObjectPool(java.lang.Class type, int size)` Constructor ObjectPool
    `ObjectPool(java.lang.String className)` Constructor ObjectPool

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `freeInstance(java.lang.Object obj)` Add an instance of the given object to the pool
    `java.lang.Object` | `getInstance()` Get an instance of the given object in this pool
    `java.lang.Object` | `getInstanceIfFree()` Get an instance of the given object in this pool if available

    - ### Methods inherited from class java.lang.Object

      `equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

- - ### Constructor Detail

    - #### ObjectPool

          public ObjectPool(java.lang.Class type)

      Constructor ObjectPool
      Parameters:
        `type` - Type of objects for this pool

    - #### ObjectPool

          public ObjectPool(java.lang.String className)

      Constructor ObjectPool
      Parameters:
        `className` - Fully qualified name of the type of objects for this pool.

    - #### ObjectPool

          public ObjectPool(java.lang.Class type,
                    int size)

      Constructor ObjectPool
      Parameters:
        `type` - Type of objects for this pool
        `size` - Size of vector to allocate

    - #### ObjectPool

          public ObjectPool()

      Constructor ObjectPool

  - ### Method Detail

    - #### getInstanceIfFree

          public java.lang.Object getInstanceIfFree()

      Get an instance of the given object in this pool if available
      Returns:
        an instance of the given object if available or null

    - #### getInstance

          public java.lang.Object getInstance()

      Get an instance of the given object in this pool
      Returns:
        An instance of the given object

    - #### freeInstance

          public void freeInstance(java.lang.Object obj)

      Add an instance of the given object to the pool
      Parameters:
        `obj` - Object to add.

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