org.apache.commons.math3.util

## Class DefaultTransformer

- java.lang.Object
- - org.apache.commons.math3.util.DefaultTransformer

- All Implemented Interfaces:
    Serializable, NumberTransformer

      public class DefaultTransformer
      extends Object
      implements NumberTransformer, Serializable

  A Default NumberTransformer for java.lang.Numbers and Numeric Strings. This provides some simple conversion capabilities to turn any java.lang.Number into a primitive double or to turn a String representation of a Number into a double.
  See Also:
    Serialized Form

- - ### Constructor Summary

    Constructors
    Constructor and Description
    `DefaultTransformer()`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `equals(Object other)`
    `int` | `hashCode()`
    `double` | `transform(Object o)` Implementing this interface provides a facility to transform from Object to Double.

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

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

- - ### Constructor Detail

    - #### DefaultTransformer

          public DefaultTransformer()

  - ### Method Detail

    - #### transform

          public double transform(Object o)
                           throws NullArgumentException,
                                  MathIllegalArgumentException

      Description copied from interface: `NumberTransformer`
      Implementing this interface provides a facility to transform from Object to Double.
      Specified by:
        `transform` in interface `NumberTransformer`
      Parameters:
        `o` - the object that gets transformed.
      Returns:
        a double primitive representation of the Object o.
      Throws:
        `NullArgumentException` - if Object `o` is `null`.
        `MathIllegalArgumentException` - if Object `o` cannot successfully be transformed
      See Also:
        Commons Collections Transformer

    - #### equals

          public boolean equals(Object other)

      Overrides:
        `equals` in class `Object`

    - #### hashCode

          public int hashCode()

      Overrides:
        `hashCode` in class `Object`

Copyright © 2003–2016 The Apache Software Foundation. All rights reserved.