ReflectionUtil (Apache Tomcat 8.5.57 API Documentation)

org.apache.el.util

## Class ReflectionUtil

- java.lang.Object
- - org.apache.el.util.ReflectionUtil

-     public class ReflectionUtil
      extends Object

  Utilities for Managing Serialization and Reflection
  Author:
    Jacob Hookom [jacob@hookom.net]

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected static String[]` | `PRIMITIVE_NAMES`
    `protected static Class<?>[]` | `PRIMITIVES`

  - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `static Class<?>` | `forName(String name)`
    `protected static Class<?>` | `forNamePrimitive(String name)`
    `static Method` | `getMethod(EvaluationContext ctx, Object base, Object property, Class<?>[] paramTypes, Object[] paramValues)` Returns a method based on the criteria.
    `static Class<?>[]` | `toTypeArray(String[] s)` Converts an array of Class names to Class types.
    `static String[]` | `toTypeNameArray(Class<?>[] c)` Converts an array of Class types to Class names.

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

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

- - ### Field Detail

    - #### PRIMITIVE_NAMES

          protected static final String[] PRIMITIVE_NAMES

    - #### PRIMITIVES

          protected static final Class<?>[] PRIMITIVES

  - ### Method Detail

    - #### forName

          public static Class<?> forName(String name)
                                  throws ClassNotFoundException

      Throws:
        `ClassNotFoundException`

    - #### forNamePrimitive

          protected static Class<?> forNamePrimitive(String name)

    - #### toTypeArray

          public static Class<?>[] toTypeArray(String[] s)
                                        throws ClassNotFoundException

      Converts an array of Class names to Class types.
      Parameters:
        `s` - The array of class names
      Returns:
        An array of Class instance where the element at index i in the result is an instance of the class with the name at index i in the input
      Throws:
        `ClassNotFoundException` - If a class of a given name cannot be found

    - #### toTypeNameArray

          public static String[] toTypeNameArray(Class<?>[] c)

      Converts an array of Class types to Class names.
      Parameters:
        `c` - The array of class instances
      Returns:
        An array of Class names where the element at index i in the result is the name of the class instance at index i in the input

    - #### getMethod

          public static Method getMethod(EvaluationContext ctx,
                         Object base,
                         Object property,
                         Class<?>[] paramTypes,
                         Object[] paramValues)
                                  throws MethodNotFoundException

      Returns a method based on the criteria.
      Parameters:
        `ctx` - the context in which the expression is being evaluated
        `base` - the object that owns the method
        `property` - the name of the method
        `paramTypes` - the parameter types to use
        `paramValues` - the parameter values
      Returns:
        the method specified
      Throws:
        `MethodNotFoundException` - If a method cannot be found that matches the given criteria

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