Package org.apache.xmlbeans.impl.jam

Class JamUtils

  • public class JamUtils
extends java.lang.Object

    Singleton collection of utility methods which can be very useful in some samples, but not often enough to warrant inclusion in the main APIs.

    Most of these are here to help you jump from the JClass hierarchy to the java.lang.reflect hierarchy. This is primarily useful when you find yourself, for example, wanting to actually invoke a method represented by a JMethod.

    • Method Summary

      All Methods Static Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      java.lang.reflect.Constructor getConstructorOn​(JConstructor ctor, java.lang.Class containedin)
      Returns the java.lang.Method on a given java.lang.Class which is represented by a given JMethod.
      java.lang.reflect.Field getFieldOn​(JField field, java.lang.Class containedin)
      Returns the java.lang.Method on a given java.lang.Class which is represented by a given JMethod.
      static JamUtils getInstance()  
      java.lang.reflect.Method getMethodOn​(JMethod method, java.lang.Class containedin)
      Returns the java.lang.Method on a given java.lang.Class which is represented by a given JMethod.
      java.lang.Class loadClass​(JClass clazz, java.lang.ClassLoader inThisClassloader)
      Loads the java.lang.Class represented by a given JClass out of a given classloader.
      void placeInSourceOrder​(JElement[] elements)
      Sorts the given array in place so that the elements are ordered by their sourcePosition's line numbers.

      • Methods inherited from class java.lang.Object

        equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Method Detail

      • getInstance

        public static final JamUtils getInstance()

      • getMethodOn

        public java.lang.reflect.Method getMethodOn​(JMethod method,
                                            java.lang.Class containedin)
                                     throws java.lang.NoSuchMethodException,
                                            java.lang.ClassNotFoundException

        Returns the java.lang.Method on a given java.lang.Class which is represented by a given JMethod.

        Parameters:
        containedin - Class to be searched for the method.
        Returns:
        Throws:
        java.lang.ClassNotFoundException - if one of the paramType classes specified for this MethodName cannot be loaded from the given class' classloader.
        java.lang.NoSuchMethodException - If the named method does not exist on this class.
        java.lang.IllegalArgumentException - if any argument is null

      • getConstructorOn

        public java.lang.reflect.Constructor getConstructorOn​(JConstructor ctor,
                                                      java.lang.Class containedin)
                                               throws java.lang.NoSuchMethodException,
                                                      java.lang.ClassNotFoundException

        Returns the java.lang.Method on a given java.lang.Class which is represented by a given JMethod.

        Parameters:
        containedin - Class to be searched for the ctor.
        Returns:
        Throws:
        java.lang.ClassNotFoundException - if one of the paramType classes specified for this MethodName cannot be loaded from the given class' classloader.
        java.lang.NoSuchMethodException - If the named ctor does not exist on this class.
        java.lang.IllegalArgumentException - if any argument is null

      • getFieldOn

        public java.lang.reflect.Field getFieldOn​(JField field,
                                          java.lang.Class containedin)
                                   throws java.lang.NoSuchFieldException

        Returns the java.lang.Method on a given java.lang.Class which is represented by a given JMethod.

        Parameters:
        containedin - Class to be searched for the method.
        Returns:
        Throws:
        java.lang.NoSuchFieldException - if the field does not exist on the class.
        java.lang.IllegalArgumentException - if any argument is null

      • loadClass

        public java.lang.Class loadClass​(JClass clazz,
                                 java.lang.ClassLoader inThisClassloader)
                          throws java.lang.ClassNotFoundException

        Loads the java.lang.Class represented by a given JClass out of a given classloader.

        Returns:
        Throws:
        java.lang.ClassNotFoundException - If the class is not found in the classloader

      • placeInSourceOrder

        public void placeInSourceOrder​(JElement[] elements)
        Sorts the given array in place so that the elements are ordered by their sourcePosition's line numbers.