SynchronizedStack (Apache Tomcat 9.0.37 API Documentation)

org.apache.tomcat.util.collections

## Class SynchronizedStack<T>

- java.lang.Object
- - org.apache.tomcat.util.collections.SynchronizedStack<T>

- Type Parameters:
    `T` - The type of object managed by this stack
  Direct Known Subclasses:
    AbstractProtocol.RecycledProcessors

      public class SynchronizedStack<T>
      extends Object

  This is intended as a (mostly) GC-free alternative to `ConcurrentLinkedQueue` when the requirement is to create a pool of re-usable objects with no requirement to shrink the pool. The aim is to provide the bare minimum of required functionality as quickly as possible with minimum garbage.

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `DEFAULT_SIZE`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `SynchronizedStack()`
    `SynchronizedStack(int size, int limit)`

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `clear()`
    `T` | `pop()`
    `boolean` | `push(T obj)`

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

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

- - ### Field Detail

    - #### DEFAULT_SIZE

          public static final int DEFAULT_SIZE

      See Also:
        Constant Field Values

  - ### Constructor Detail

    - #### SynchronizedStack

          public SynchronizedStack()

    - #### SynchronizedStack

          public SynchronizedStack(int size,
                                   int limit)

  - ### Method Detail

    - #### push

          public boolean push(T obj)

    - #### pop

          public T pop()

    - #### clear

          public void clear()

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