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java.lang.Objectorg.apache.tools.ant.util.ReflectUtil
public class ReflectUtil
Utility class to handle reflection on java objects. The class contains static methods to call reflection methods, catch any exceptions, converting them to BuildExceptions.
| Method Summary | ||
|---|---|---|
| static java.lang.Object | getField(java.lang.Object obj,
         java.lang.String fieldName)Get the value of a field in an object. | |
| static java.lang.Object | invoke(java.lang.Object obj,
       java.lang.String methodName)Call a method on the object with no parameters. | |
| static java.lang.Object | invoke(java.lang.Object obj,
       java.lang.String methodName,
       java.lang.Class<?> argType,
       java.lang.Object arg)Call a method on the object with one argument. | |
| static java.lang.Object | invoke(java.lang.Object obj,
       java.lang.String methodName,
       java.lang.Class<?> argType1,
       java.lang.Object arg1,
       java.lang.Class<?> argType2,
       java.lang.Object arg2)Call a method on the object with two argument. | |
| static java.lang.Object | invokeStatic(java.lang.Object obj,
             java.lang.String methodName)Call a method on the object with no parameters. | |
| static
 | newInstance(java.lang.Class<T> ofClass,
            java.lang.Class<?>[] argTypes,
            java.lang.Object[] args)Create an instance of a class using the constructor matching the given arguments. | |
| static boolean | respondsTo(java.lang.Object o,
           java.lang.String methodName)A method to test if an object responds to a given message (method call) | |
| static void | throwBuildException(java.lang.Exception t)A method to convert an invocationTargetException to a buildexception and throw it. | |
| static BuildException | toBuildException(java.lang.Exception t)A method to convert an invocationTargetException to a buildexception. | |
| Methods inherited from class java.lang.Object | 
|---|
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait | 
| Method Detail | 
|---|
public static <T> T newInstance(java.lang.Class<T> ofClass,
                                java.lang.Class<?>[] argTypes,
                                java.lang.Object[] args)
public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName)
obj - the object to invoke the method on.methodName - the name of the method to call
public static java.lang.Object invokeStatic(java.lang.Object obj,
                                            java.lang.String methodName)
obj - the object to invoke the method on.methodName - the name of the method to call
public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName,
                                      java.lang.Class<?> argType,
                                      java.lang.Object arg)
obj - the object to invoke the method on.methodName - the name of the method to callargType - the type of argument.arg - the value of the argument.
public static java.lang.Object invoke(java.lang.Object obj,
                                      java.lang.String methodName,
                                      java.lang.Class<?> argType1,
                                      java.lang.Object arg1,
                                      java.lang.Class<?> argType2,
                                      java.lang.Object arg2)
obj - the object to invoke the method on.methodName - the name of the method to callargType1 - the type of the first argument.arg1 - the value of the first argument.argType2 - the type of the second argument.arg2 - the value of the second argument.
public static java.lang.Object getField(java.lang.Object obj,
                                        java.lang.String fieldName)
                                 throws BuildException
obj - the object to look at.fieldName - the name of the field in the object.
BuildException - if there is an error.
public static void throwBuildException(java.lang.Exception t)
                                throws BuildException
t - the invocation target exception.
BuildException - the converted exception.public static BuildException toBuildException(java.lang.Exception t)
t - the invocation target exception.
public static boolean respondsTo(java.lang.Object o,
                                 java.lang.String methodName)
                          throws BuildException
o - the objectmethodName - the method to check for
BuildException - if there is a problem.| 
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