aboutsummaryrefslogtreecommitdiffstats
path: root/src/com/vaadin/tools/ReflectTools.java
diff options
context:
space:
mode:
Diffstat (limited to 'src/com/vaadin/tools/ReflectTools.java')
-rw-r--r--src/com/vaadin/tools/ReflectTools.java126
1 files changed, 0 insertions, 126 deletions
diff --git a/src/com/vaadin/tools/ReflectTools.java b/src/com/vaadin/tools/ReflectTools.java
deleted file mode 100644
index ea2afae301..0000000000
--- a/src/com/vaadin/tools/ReflectTools.java
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
-@VaadinApache2LicenseForJavaFiles@
- */
-package com.vaadin.tools;
-
-import java.beans.IntrospectionException;
-import java.beans.PropertyDescriptor;
-import java.lang.reflect.InvocationTargetException;
-import java.lang.reflect.Method;
-
-/**
- * An util class with helpers for reflection operations. Used internally by
- * Vaadin and should not be used by application developers. Subject to change at
- * any time.
- *
- * @since 6.2
- */
-public class ReflectTools {
- /**
- * Locates the method in the given class. Returns null if the method is not
- * found. Throws an ExceptionInInitializerError if there is a problem
- * locating the method as this is mainly called from static blocks.
- *
- * @param cls
- * Class that contains the method
- * @param methodName
- * The name of the method
- * @param parameterTypes
- * The parameter types for the method.
- * @return A reference to the method
- * @throws ExceptionInInitializerError
- * Wraps any exception in an {@link ExceptionInInitializerError}
- * so this method can be called from a static initializer.
- */
- public static Method findMethod(Class<?> cls, String methodName,
- Class<?>... parameterTypes) throws ExceptionInInitializerError {
- try {
- return cls.getDeclaredMethod(methodName, parameterTypes);
- } catch (Exception e) {
- throw new ExceptionInInitializerError(e);
- }
- }
-
- /**
- * Returns the value of the java field.
- * <p>
- * Uses getter if present, otherwise tries to access even private fields
- * directly.
- *
- * @param object
- * The object containing the field
- * @param field
- * The field we want to get the value for
- * @return The value of the field in the object
- * @throws InvocationTargetException
- * If the value could not be retrieved
- * @throws IllegalAccessException
- * If the value could not be retrieved
- * @throws IllegalArgumentException
- * If the value could not be retrieved
- */
- public static Object getJavaFieldValue(Object object,
- java.lang.reflect.Field field) throws IllegalArgumentException,
- IllegalAccessException, InvocationTargetException {
- PropertyDescriptor pd;
- try {
- pd = new PropertyDescriptor(field.getName(), object.getClass());
- Method getter = pd.getReadMethod();
- if (getter != null) {
- return getter.invoke(object, (Object[]) null);
- }
- } catch (IntrospectionException e1) {
- // Ignore this and try to get directly using the field
- }
-
- // Try to get the value or throw an exception
- if (!field.isAccessible()) {
- // Try to gain access even if field is private
- field.setAccessible(true);
- }
- return field.get(object);
- }
-
- /**
- * Sets the value of a java field.
- * <p>
- * Uses setter if present, otherwise tries to access even private fields
- * directly.
- *
- * @param object
- * The object containing the field
- * @param field
- * The field we want to set the value for
- * @param value
- * The value to set
- * @throws IllegalAccessException
- * If the value could not be assigned to the field
- * @throws IllegalArgumentException
- * If the value could not be assigned to the field
- * @throws InvocationTargetException
- * If the value could not be assigned to the field
- */
- public static void setJavaFieldValue(Object object,
- java.lang.reflect.Field field, Object value)
- throws IllegalAccessException, IllegalArgumentException,
- InvocationTargetException {
- PropertyDescriptor pd;
- try {
- pd = new PropertyDescriptor(field.getName(), object.getClass());
- Method setter = pd.getWriteMethod();
- if (setter != null) {
- // Exceptions are thrown forward if this fails
- setter.invoke(object, value);
- }
- } catch (IntrospectionException e1) {
- // Ignore this and try to set directly using the field
- }
-
- // Try to set the value directly to the field or throw an exception
- if (!field.isAccessible()) {
- // Try to gain access even if field is private
- field.setAccessible(true);
- }
- field.set(object, value);
- }
-}