GenericKeyedObjectPoolConfig (Apache Tomcat 9.0.37 API Documentation)

org.apache.tomcat.dbcp.pool2.impl

## Class GenericKeyedObjectPoolConfig<T>

- java.lang.Object
- - org.apache.tomcat.dbcp.pool2.BaseObject
  - - org.apache.tomcat.dbcp.pool2.impl.BaseObjectPoolConfig<T>
    - - org.apache.tomcat.dbcp.pool2.impl.GenericKeyedObjectPoolConfig<T>

- Type Parameters:
    `T` - Type of element pooled.
  All Implemented Interfaces:
    Cloneable

      public class GenericKeyedObjectPoolConfig<T>
      extends BaseObjectPoolConfig<T>

  A simple "struct" encapsulating the configuration for a `GenericKeyedObjectPool`.

  This class is not thread-safe; it is only intended to be used to provide attributes used when creating a pool.

  Since:
    2.0

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `static int` | `DEFAULT_MAX_IDLE_PER_KEY` The default value for the `maxIdlePerKey` configuration attribute.
    `static int` | `DEFAULT_MAX_TOTAL` The default value for the `maxTotal` configuration attribute.
    `static int` | `DEFAULT_MAX_TOTAL_PER_KEY` The default value for the `maxTotalPerKey` configuration attribute.
    `static int` | `DEFAULT_MIN_IDLE_PER_KEY` The default value for the `minIdlePerKey` configuration attribute.

    - ### Fields inherited from class org.apache.tomcat.dbcp.pool2.impl.BaseObjectPoolConfig

      `DEFAULT_BLOCK_WHEN_EXHAUSTED, DEFAULT_EVICTION_POLICY_CLASS_NAME, DEFAULT_EVICTOR_SHUTDOWN_TIMEOUT_MILLIS, DEFAULT_FAIRNESS, DEFAULT_JMX_ENABLE, DEFAULT_JMX_NAME_BASE, DEFAULT_JMX_NAME_PREFIX, DEFAULT_LIFO, DEFAULT_MAX_WAIT_MILLIS, DEFAULT_MIN_EVICTABLE_IDLE_TIME_MILLIS, DEFAULT_NUM_TESTS_PER_EVICTION_RUN, DEFAULT_SOFT_MIN_EVICTABLE_IDLE_TIME_MILLIS, DEFAULT_TEST_ON_BORROW, DEFAULT_TEST_ON_CREATE, DEFAULT_TEST_ON_RETURN, DEFAULT_TEST_WHILE_IDLE, DEFAULT_TIME_BETWEEN_EVICTION_RUNS_MILLIS`

  - ### Constructor Summary

    Constructors
    Constructor and Description
    `GenericKeyedObjectPoolConfig()` Create a new configuration with default settings.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `GenericKeyedObjectPoolConfig<T>` | `clone()`
    `int` | `getMaxIdlePerKey()` Get the value for the `maxIdlePerKey` configuration attribute for pools created with this configuration instance.
    `int` | `getMaxTotal()` Get the value for the `maxTotal` configuration attribute for pools created with this configuration instance.
    `int` | `getMaxTotalPerKey()` Get the value for the `maxTotalPerKey` configuration attribute for pools created with this configuration instance.
    `int` | `getMinIdlePerKey()` Get the value for the `minIdlePerKey` configuration attribute for pools created with this configuration instance.
    `void` | `setMaxIdlePerKey(int maxIdlePerKey)` Set the value for the `maxIdlePerKey` configuration attribute for pools created with this configuration instance.
    `void` | `setMaxTotal(int maxTotal)` Set the value for the `maxTotal` configuration attribute for pools created with this configuration instance.
    `void` | `setMaxTotalPerKey(int maxTotalPerKey)` Set the value for the `maxTotalPerKey` configuration attribute for pools created with this configuration instance.
    `void` | `setMinIdlePerKey(int minIdlePerKey)` Set the value for the `minIdlePerKey` configuration attribute for pools created with this configuration instance.
    `protected void` | `toStringAppendFields(StringBuilder builder)` Used by sub-classes to include the fields defined by the sub-class in the `BaseObject.toString()` output.

    - ### Methods inherited from class org.apache.tomcat.dbcp.pool2.impl.BaseObjectPoolConfig

      `getBlockWhenExhausted, getEvictionPolicy, getEvictionPolicyClassName, getEvictorShutdownTimeoutMillis, getFairness, getJmxEnabled, getJmxNameBase, getJmxNamePrefix, getLifo, getMaxWaitMillis, getMinEvictableIdleTimeMillis, getNumTestsPerEvictionRun, getSoftMinEvictableIdleTimeMillis, getTestOnBorrow, getTestOnCreate, getTestOnReturn, getTestWhileIdle, getTimeBetweenEvictionRunsMillis, setBlockWhenExhausted, setEvictionPolicy, setEvictionPolicyClassName, setEvictorShutdownTimeoutMillis, setFairness, setJmxEnabled, setJmxNameBase, setJmxNamePrefix, setLifo, setMaxWaitMillis, setMinEvictableIdleTimeMillis, setNumTestsPerEvictionRun, setSoftMinEvictableIdleTimeMillis, setTestOnBorrow, setTestOnCreate, setTestOnReturn, setTestWhileIdle, setTimeBetweenEvictionRunsMillis`

    - ### Methods inherited from class org.apache.tomcat.dbcp.pool2.BaseObject

      `toString`

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

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

- - ### Field Detail

    - #### DEFAULT_MAX_TOTAL_PER_KEY

          public static final int DEFAULT_MAX_TOTAL_PER_KEY

      The default value for the `maxTotalPerKey` configuration attribute.
      See Also:
        `GenericKeyedObjectPool.getMaxTotalPerKey()`, Constant Field Values

    - #### DEFAULT_MAX_TOTAL

          public static final int DEFAULT_MAX_TOTAL

      The default value for the `maxTotal` configuration attribute.
      See Also:
        `BaseGenericObjectPool.getMaxTotal()`, Constant Field Values

    - #### DEFAULT_MIN_IDLE_PER_KEY

          public static final int DEFAULT_MIN_IDLE_PER_KEY

      The default value for the `minIdlePerKey` configuration attribute.
      See Also:
        `GenericKeyedObjectPool.getMinIdlePerKey()`, Constant Field Values

    - #### DEFAULT_MAX_IDLE_PER_KEY

          public static final int DEFAULT_MAX_IDLE_PER_KEY

      The default value for the `maxIdlePerKey` configuration attribute.
      See Also:
        `GenericKeyedObjectPool.getMaxIdlePerKey()`, Constant Field Values

  - ### Constructor Detail

    - #### GenericKeyedObjectPoolConfig

          public GenericKeyedObjectPoolConfig()

      Create a new configuration with default settings.

  - ### Method Detail

    - #### getMaxTotal

          public int getMaxTotal()

      Get the value for the `maxTotal` configuration attribute for pools created with this configuration instance.
      Returns:
        The current setting of `maxTotal` for this configuration instance
      See Also:
        `BaseGenericObjectPool.getMaxTotal()`

    - #### setMaxTotal

          public void setMaxTotal(int maxTotal)

      Set the value for the `maxTotal` configuration attribute for pools created with this configuration instance.
      Parameters:
        `maxTotal` - The new setting of `maxTotal` for this configuration instance
      See Also:
        `BaseGenericObjectPool.setMaxTotal(int)`

    - #### getMaxTotalPerKey

          public int getMaxTotalPerKey()

      Get the value for the `maxTotalPerKey` configuration attribute for pools created with this configuration instance.
      Returns:
        The current setting of `maxTotalPerKey` for this configuration instance
      See Also:
        `GenericKeyedObjectPool.getMaxTotalPerKey()`

    - #### setMaxTotalPerKey

          public void setMaxTotalPerKey(int maxTotalPerKey)

      Set the value for the `maxTotalPerKey` configuration attribute for pools created with this configuration instance.
      Parameters:
        `maxTotalPerKey` - The new setting of `maxTotalPerKey` for this configuration instance
      See Also:
        `GenericKeyedObjectPool.setMaxTotalPerKey(int)`

    - #### getMinIdlePerKey

          public int getMinIdlePerKey()

      Get the value for the `minIdlePerKey` configuration attribute for pools created with this configuration instance.
      Returns:
        The current setting of `minIdlePerKey` for this configuration instance
      See Also:
        `GenericKeyedObjectPool.getMinIdlePerKey()`

    - #### setMinIdlePerKey

          public void setMinIdlePerKey(int minIdlePerKey)

      Set the value for the `minIdlePerKey` configuration attribute for pools created with this configuration instance.
      Parameters:
        `minIdlePerKey` - The new setting of `minIdlePerKey` for this configuration instance
      See Also:
        `GenericKeyedObjectPool.setMinIdlePerKey(int)`

    - #### getMaxIdlePerKey

          public int getMaxIdlePerKey()

      Get the value for the `maxIdlePerKey` configuration attribute for pools created with this configuration instance.
      Returns:
        The current setting of `maxIdlePerKey` for this configuration instance
      See Also:
        `GenericKeyedObjectPool.getMaxIdlePerKey()`

    - #### setMaxIdlePerKey

          public void setMaxIdlePerKey(int maxIdlePerKey)

      Set the value for the `maxIdlePerKey` configuration attribute for pools created with this configuration instance.
      Parameters:
        `maxIdlePerKey` - The new setting of `maxIdlePerKey` for this configuration instance
      See Also:
        `GenericKeyedObjectPool.setMaxIdlePerKey(int)`

    - #### clone

          public GenericKeyedObjectPoolConfig<T> clone()

      Overrides:
        `clone` in class `Object`

    - #### toStringAppendFields

          protected void toStringAppendFields(StringBuilder builder)

      Description copied from class: `BaseObject`
      Used by sub-classes to include the fields defined by the sub-class in the `BaseObject.toString()` output.
      Overrides:
        `toStringAppendFields` in class `BaseObjectPoolConfig<T>`
      Parameters:
        `builder` - Field names and values are appended to this object

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