Example usage for java.lang.reflect Field set

Introduction

In this page you can find the example usage for java.lang.reflect Field set.

Prototype

@CallerSensitive
@ForceInline 
public void set(Object obj, Object value) throws IllegalArgumentException, IllegalAccessException

Source Link

Document

Sets the field represented by this Field object on the specified object argument to the specified new value.

Usage

From source file:Main.java

public static void copyBean(Object from, Object to) {
    Class<?> beanClass = from.getClass();
    Field[] fields = beanClass.getFields();
    for (int i = 0; i < fields.length; i++) {
        Field field = fields[i];
        field.setAccessible(true);//  www. ja  v a2 s .  c o m
        try {
            Object value = field.get(from);
            field.set(to, value);
        } catch (Exception e) {
        }
    }
}

From source file:Main.java

/**
 * /*from w  ww .j  a  v  a2  s. co m*/
 * @param node
 * @param classname
 * @return
 */
public static Object decode(Element node, String classname) {
    try {
        Class classObject = Class.forName(classname);
        Object object = classObject.newInstance();
        NamedNodeMap attributes = node.getAttributes();
        for (int i = 0; i < attributes.getLength(); i++) {
            Node child = attributes.item(i);
            String nodeName = child.getNodeName();
            Field field = classObject.getField(nodeName);
            field.setAccessible(true);
            field.set(object, child.getNodeValue());
        }
        return object;
    } catch (ClassNotFoundException e) {
        e.printStackTrace();
        return null;
    } catch (InstantiationException e) {
        e.printStackTrace();
        return null;
    } catch (IllegalAccessException e) {
        e.printStackTrace();
        return null;
    } catch (SecurityException e) {
        e.printStackTrace();
        return null;
    } catch (NoSuchFieldException e) {
        e.printStackTrace();
        return null;
    }

}

From source file:Main.java

public static void setVar(@NonNull Object obj, @NonNull String name, @Nullable Object val) throws Exception {
    for (Class cls = obj.getClass(); //
            cls != null && cls != Object.class; //
            cls = cls.getSuperclass()) {
        for (Field f : cls.getDeclaredFields()) {
            if (f.getName().equals(name)) {
                f.setAccessible(true);//from   ww w .ja  v  a 2s. co m
                f.set(obj, val);
                return;
            }
        }
    }
    throw new RuntimeException("no var matching " + name);
}

From source file:org.grails.orm.hibernate.cfg.GrailsIdentifierGeneratorFactory.java

public static void applyNewInstance(Configuration cfg) throws IllegalArgumentException, IllegalAccessException {
    Field field = ReflectionUtils.findField(Configuration.class, "identifierGeneratorFactory");
    field.setAccessible(true);/*from  w  ww . j av a 2  s .  co m*/
    field.set(cfg, new GrailsIdentifierGeneratorFactory());
}

From source file:com.sun.faces.application.ResetUniqueRequestIdBean.java

public static void setPrivateField(String fieldName, Class containingClass, Object target, Object value) {
    try {/*  w w  w.  j av  a2  s  .  co  m*/
        Field field = containingClass.getDeclaredField(fieldName);
        field.setAccessible(true);
        field.set(target, value);
    } catch (Exception e) {
        throw new RuntimeException(e);
    }
}

From source file:Main.java

private static void setField(Object paramObject1, Class<?> paramClass, String paramString, Object paramObject2)
        throws NoSuchFieldException, IllegalAccessException, IllegalArgumentException {
    Field localField = paramClass.getDeclaredField(paramString);
    localField.setAccessible(true);//w  w  w  .ja  v a  2s .  c  om
    localField.set(paramObject1, paramObject2);
}

From source file:Main.java

public static void quitLoop() {
    try {/*from  w  ww.j ava 2s .c om*/
        Field mQuitAllowed = MessageQueue.class.getDeclaredField("mQuitAllowed");
        mQuitAllowed.setAccessible(true);

        mQuitAllowed.set(Looper.myQueue(), true);

        Looper.myLooper().quit();

        Field mQuiting = MessageQueue.class.getDeclaredField("mQuiting");
        mQuiting.setAccessible(true);

        mQuiting.set(Looper.myQueue(), false);
        mQuitAllowed.set(Looper.myQueue(), false);
    } catch (Exception e) {
        throw new IllegalStateException(
                "Sofia modal runnables are not " + "supported on this version of the Android API because the "
                        + "MessageQueue.mQuitAllowed field could not be found or "
                        + "there was a problem changing it.");
    }
}

From source file:com.eclecticlogic.pedal.dm.internal.MetamodelUtil.java

/**
 * @param attribute JPA metamodel attribute.
 * @param entity Entity to set the value on.
 * @param value Value to set.//from w w w .j  a  v  a  2  s .  c  o m
 */
public static <E extends Serializable, T extends Serializable> void set(Attribute<? super E, T> attribute,
        E entity, T value) {
    Member member = attribute.getJavaMember();
    if (member instanceof Field) {
        Field field = (Field) member;
        field.setAccessible(true);
        try {
            field.set(entity, value);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }
    } else if (member instanceof Method) {
        PropertyDescriptor pd = BeanUtils.findPropertyForMethod((Method) member);
        if (pd.getWriteMethod() != null) {
            pd.getWriteMethod().setAccessible(true);
            try {
                pd.getWriteMethod().invoke(entity, value);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
        } else {
            throw new RuntimeException(
                    "No setter for " + attribute.getName() + " in " + entity.getClass().getName());
        }
    } else {
        throw new RuntimeException("Failed to set " + attribute.getName() + " of type "
                + member.getClass().getName() + " in entity " + entity.getClass().getName());
    }
}

From source file:Main.java

public static void setField(Field field, Object target, Object value) {
    if (!Modifier.isPublic(field.getModifiers())) {
        field.setAccessible(true);//w ww.j av  a  2s  .c  om
    }
    try {
        field.set(target, value);
    } catch (IllegalAccessException iae) {
        throw new IllegalArgumentException("Could not set field " + field, iae);
    }
}

From source file:com.aw.support.reflection.AttributeAccessor.java

/**
 * @param target//from   w w  w.  j a  v a 2  s. c  o m
 * @return
 */
public static void set(Object target, Field field, Object value) {
    field.setAccessible(true);
    try {
        field.set(target, value);
    } catch (IllegalAccessException e) {
        e.printStackTrace();
        throw new IllegalArgumentException("Error setting the value of the attribute:<" + field.getName()
                + "> of object:<" + target + "> check: Attribute Type:<" + field.getType() + "> value Type: <"
                + value.getClass() + ">");
    }
}