DefaultPooledObject

java.lang.Object
- org.apache.commons.pool2.impl.DefaultPooledObject<T>

类型参数:

T - the type of object in the pool

所有已实现的接口:

java.lang.Comparable<PooledObject<T>>, PooledObject<T>

直接已知子类:

PooledSoftReference
```
public class DefaultPooledObject<T>
extends java.lang.Object
implements PooledObject<T>
```
This wrapper is used to track the additional information, such as state, for the pooled objects.
This class is intended to be thread-safe.

从以下版本开始:

2.0

构造器概要

构造器
构造器和说明

DefaultPooledObject(T object)
Creates a new instance that wraps the provided object so that the pool can track the state of the pooled object.

构造器
构造器和说明
`DefaultPooledObject(T object)` Creates a new instance that wraps the provided object so that the pool can track the state of the pooled object.

方法概要

所有方法实例方法具体方法
限定符和类型	方法和说明
`boolean`	`allocate()` Allocates the object.
`int`	`compareTo(PooledObject<T> other)` Orders instances based on idle time - i.e. the length of time since the instance was returned to the pool.
`boolean`	`deallocate()` Deallocates the object and sets it `IDLE` if it is currently `ALLOCATED` or `RETURNING`.
`boolean`	`endEvictionTest(java.util.Deque<PooledObject<T>> idleQueue)` Called to inform the object that the eviction test has ended.
`long`	`getActiveTimeMillis()` Gets the amount of time in milliseconds this object last spent in the active state (it may still be active in which case subsequent calls will return an increased value).
`long`	`getBorrowedCount()` Gets the number of times this object has been borrowed.
`long`	`getCreateTime()` Gets the time (using the same basis as `System.currentTimeMillis()`) that this object was created.
`long`	`getIdleTimeMillis()` Gets the amount of time in milliseconds that this object last spend in the idle state (it may still be idle in which case subsequent calls will return an increased value).
`long`	`getLastBorrowTime()` Gets the time the wrapped object was last borrowed.
`long`	`getLastReturnTime()` Gets the time the wrapped object was last returned.
`long`	`getLastUsedTime()` Gets an estimate of the last time this object was used.
`T`	`getObject()` Gets the underlying object that is wrapped by this instance of `PooledObject`.
`PooledObjectState`	`getState()` Gets the state of this object.
`void`	`invalidate()` Sets the state to `INVALID`
`void`	`markAbandoned()` Marks the pooled object as abandoned.
`void`	`markReturning()` Marks the object as returning to the pool.
`void`	`printStackTrace(java.io.PrintWriter writer)` Prints the stack trace of the code that borrowed this pooled object and the stack trace of the last code to use this object (if available) to the supplied writer.
`void`	`setLogAbandoned(boolean logAbandoned)` Is abandoned object tracking being used?
`void`	`setRequireFullStackTrace(boolean requireFullStackTrace)` Configures the stack trace generation strategy based on whether or not fully detailed stack traces are required.
`boolean`	`startEvictionTest()` Attempts to place the pooled object in the `PooledObjectState.EVICTION` state.
`java.lang.String`	`toString()` Provides a String form of the wrapper for debug purposes.
`void`	`use()` Record the current stack trace as the last time the object was used.

从类继承的方法 java.lang.Object
equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

从接口继承的方法 org.apache.commons.pool2.PooledObject
equals, getActiveTime, getIdleTime, hashCode

- 构造器详细资料
  - DefaultPooledObject
```
public DefaultPooledObject(T object)
```
    Creates a new instance that wraps the provided object so that the pool can track the state of the pooled object.
    
    参数:
    
    object - The object to wrap
- 方法详细资料
  - allocate
```
public boolean allocate()
```
    Allocates the object.
    
    指定者:
    
    allocate 在接口中 PooledObject<T>
    
    返回:
    
    true if the original state was IDLE
  - compareTo
```
public int compareTo(PooledObject<T> other)
```
    从接口复制的说明: PooledObject
    
    Orders instances based on idle time - i.e. the length of time since the instance was returned to the pool. Used by the GKOP idle object evictor.
    Note: This class has a natural ordering that is inconsistent with equals if distinct objects have the same identity hash code.
    
    指定者:
    
    compareTo 在接口中 java.lang.Comparable<PooledObject<T>>
    
    指定者:
    
    compareTo 在接口中 PooledObject<T>
  - deallocate
```
public boolean deallocate()
```
    Deallocates the object and sets it IDLE if it is currently ALLOCATED or RETURNING.
    
    指定者:
    
    deallocate 在接口中 PooledObject<T>
    
    返回:
    
    true if the state was ALLOCATED or RETURNING.
  - endEvictionTest
```
public boolean endEvictionTest(java.util.Deque<PooledObject<T>> idleQueue)
```
    从接口复制的说明: PooledObject
    
    Called to inform the object that the eviction test has ended.
    
    指定者:
    
    endEvictionTest 在接口中 PooledObject<T>
    
    参数:
    
    idleQueue - The queue of idle objects to which the object should be returned
    
    返回:
    
    Currently not used
  - getActiveTimeMillis
```
public long getActiveTimeMillis()
```
    从接口复制的说明: PooledObject
    
    Gets the amount of time in milliseconds this object last spent in the active state (it may still be active in which case subsequent calls will return an increased value).
    
    指定者:
    
    getActiveTimeMillis 在接口中 PooledObject<T>
    
    返回:
    
    The time in milliseconds last spent in the active state
  - getBorrowedCount
```
public long getBorrowedCount()
```
    Gets the number of times this object has been borrowed.
    
    指定者:
    
    getBorrowedCount 在接口中 PooledObject<T>
    
    返回:
    
    The number of times this object has been borrowed.
    
    从以下版本开始:
    
    2.1
  - getCreateTime
```
public long getCreateTime()
```
    从接口复制的说明: PooledObject
    
    Gets the time (using the same basis as System.currentTimeMillis()) that this object was created.
    
    指定者:
    
    getCreateTime 在接口中 PooledObject<T>
    
    返回:
    
    The creation time for the wrapped object
  - getIdleTimeMillis
```
public long getIdleTimeMillis()
```
    从接口复制的说明: PooledObject
    
    Gets the amount of time in milliseconds that this object last spend in the idle state (it may still be idle in which case subsequent calls will return an increased value).
    
    指定者:
    
    getIdleTimeMillis 在接口中 PooledObject<T>
    
    返回:
    
    The time in milliseconds last spent in the idle state
  - getLastBorrowTime
```
public long getLastBorrowTime()
```
    从接口复制的说明: PooledObject
    
    Gets the time the wrapped object was last borrowed.
    
    指定者:
    
    getLastBorrowTime 在接口中 PooledObject<T>
    
    返回:
    
    The time the object was last borrowed
  - getLastReturnTime
```
public long getLastReturnTime()
```
    从接口复制的说明: PooledObject
    
    Gets the time the wrapped object was last returned.
    
    指定者:
    
    getLastReturnTime 在接口中 PooledObject<T>
    
    返回:
    
    The time the object was last returned
  - getLastUsedTime
```
public long getLastUsedTime()
```
    Gets an estimate of the last time this object was used. If the class of the pooled object implements TrackedUse, what is returned is the maximum of TrackedUse.getLastUsed() and getLastBorrowTime(); otherwise this method gives the same value as getLastBorrowTime().
    
    指定者:
    
    getLastUsedTime 在接口中 PooledObject<T>
    
    返回:
    
    the last time this object was used
  - getObject
```
public T getObject()
```
    从接口复制的说明: PooledObject
    
    Gets the underlying object that is wrapped by this instance of PooledObject.
    
    指定者:
    
    getObject 在接口中 PooledObject<T>
    
    返回:
    
    The wrapped object
  - getState
```
public PooledObjectState getState()
```
    Gets the state of this object.
    
    指定者:
    
    getState 在接口中 PooledObject<T>
    
    返回:
    
    state
  - invalidate
```
public void invalidate()
```
    Sets the state to INVALID
    
    指定者:
    
    invalidate 在接口中 PooledObject<T>
  - markAbandoned
```
public void markAbandoned()
```
    Marks the pooled object as abandoned.
    
    指定者:
    
    markAbandoned 在接口中 PooledObject<T>
  - markReturning
```
public void markReturning()
```
    Marks the object as returning to the pool.
    
    指定者:
    
    markReturning 在接口中 PooledObject<T>
  - printStackTrace
```
public void printStackTrace(java.io.PrintWriter writer)
```
    从接口复制的说明: PooledObject
    
    Prints the stack trace of the code that borrowed this pooled object and the stack trace of the last code to use this object (if available) to the supplied writer.
    
    指定者:
    
    printStackTrace 在接口中 PooledObject<T>
    
    参数:
    
    writer - The destination for the debug output
  - setLogAbandoned
```
public void setLogAbandoned(boolean logAbandoned)
```
    从接口复制的说明: PooledObject
    
    Is abandoned object tracking being used? If this is true the implementation will need to record the stack trace of the last caller to borrow this object.
    
    指定者:
    
    setLogAbandoned 在接口中 PooledObject<T>
    
    参数:
    
    logAbandoned - The new configuration setting for abandoned object tracking
  - setRequireFullStackTrace
```
public void setRequireFullStackTrace(boolean requireFullStackTrace)
```
    Configures the stack trace generation strategy based on whether or not fully detailed stack traces are required. When set to false, abandoned logs may only include caller class information rather than method names, line numbers, and other normal metadata available in a full stack trace.
    
    指定者:
    
    setRequireFullStackTrace 在接口中 PooledObject<T>
    
    参数:
    
    requireFullStackTrace - the new configuration setting for abandoned object logging
    
    从以下版本开始:
    
    2.5
  - startEvictionTest
```
public boolean startEvictionTest()
```
    从接口复制的说明: PooledObject
    
    Attempts to place the pooled object in the PooledObjectState.EVICTION state.
    
    指定者:
    
    startEvictionTest 在接口中 PooledObject<T>
    
    返回:
    
    true if the object was placed in the PooledObjectState.EVICTION state otherwise false
  - toString
```
public java.lang.String toString()
```
    从接口复制的说明: PooledObject
    
    Provides a String form of the wrapper for debug purposes. The format is not fixed and may change at any time.
    
    指定者:
    
    toString 在接口中 PooledObject<T>
    
    覆盖:
    
    toString 在类中 java.lang.Object
  - use
```
public void use()
```
    从接口复制的说明: PooledObject
    
    Record the current stack trace as the last time the object was used.
    
    指定者:
    
    use 在接口中 PooledObject<T>

类 DefaultPooledObject<T>

构造器概要

方法概要

从类继承的方法 java.lang.Object

从接口继承的方法 org.apache.commons.pool2.PooledObject

构造器详细资料

DefaultPooledObject

方法详细资料

allocate

compareTo

deallocate

endEvictionTest

getActiveTimeMillis

getBorrowedCount

getCreateTime

getIdleTimeMillis

getLastBorrowTime

getLastReturnTime

getLastUsedTime

getObject

getState

invalidate

markAbandoned

markReturning

printStackTrace

setLogAbandoned

setRequireFullStackTrace

startEvictionTest

toString

use