GenericObjectPoolConfig (Apache Tomcat 8.5.57 API Documentation)

org.apache.tomcat.dbcp.pool2.impl

## Class GenericObjectPoolConfig<T>

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

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

      public class GenericObjectPoolConfig<T>
      extends BaseObjectPoolConfig<T>

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

  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` The default value for the `maxIdle` configuration attribute.
    `static int` | `DEFAULT_MAX_TOTAL` The default value for the `maxTotal` configuration attribute.
    `static int` | `DEFAULT_MIN_IDLE` The default value for the `minIdle` 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
    `GenericObjectPoolConfig()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `GenericObjectPoolConfig<T>` | `clone()`
    `int` | `getMaxIdle()` Get the value for the `maxIdle` 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` | `getMinIdle()` Get the value for the `minIdle` configuration attribute for pools created with this configuration instance.
    `void` | `setMaxIdle(int maxIdle)` Set the value for the `maxIdle` 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` | `setMinIdle(int minIdle)` Set the value for the `minIdle` 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

          public static final int DEFAULT_MAX_TOTAL

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

    - #### DEFAULT_MAX_IDLE

          public static final int DEFAULT_MAX_IDLE

      The default value for the `maxIdle` configuration attribute.
      See Also:
        `GenericObjectPool.getMaxIdle()`, Constant Field Values

    - #### DEFAULT_MIN_IDLE

          public static final int DEFAULT_MIN_IDLE

      The default value for the `minIdle` configuration attribute.
      See Also:
        `GenericObjectPool.getMinIdle()`, Constant Field Values

  - ### Constructor Detail

    - #### GenericObjectPoolConfig

          public GenericObjectPoolConfig()

  - ### 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)`

    - #### getMaxIdle

          public int getMaxIdle()

      Get the value for the `maxIdle` configuration attribute for pools created with this configuration instance.
      Returns:
        The current setting of `maxIdle` for this configuration instance
      See Also:
        `GenericObjectPool.getMaxIdle()`

    - #### setMaxIdle

          public void setMaxIdle(int maxIdle)

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

    - #### getMinIdle

          public int getMinIdle()

      Get the value for the `minIdle` configuration attribute for pools created with this configuration instance.
      Returns:
        The current setting of `minIdle` for this configuration instance
      See Also:
        `GenericObjectPool.getMinIdle()`

    - #### setMinIdle

          public void setMinIdle(int minIdle)

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

    - #### clone

          public GenericObjectPoolConfig<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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