Example usage for java.lang Class getDeclaredFields

Introduction

In this page you can find the example usage for java.lang Class getDeclaredFields.

Prototype

@CallerSensitive
public Field[] getDeclaredFields() throws SecurityException

Source Link

Document

Returns an array of Field objects reflecting all the fields declared by the class or interface represented by this Class object.

Usage

From source file:com.abiquo.model.util.ModelTransformer.java

public static <T> void transform(final Class sourceClass, final Class<T> targetClass, final Object source,
        final T target) throws Exception {
    Field[] transportFields = sourceClass.getDeclaredFields();
    Class superClass = sourceClass.getSuperclass();
    while (!superClass.getSimpleName().equalsIgnoreCase("SingleResourceTransportDto")) {
        transportFields = (Field[]) ArrayUtils.addAll(transportFields, superClass.getDeclaredFields());
        superClass = superClass.getSuperclass();
    }/*  w ww.  j  a  v a 2 s  .  c om*/

    for (Field field : transportFields) {

        int modifiers = field.getModifiers();
        if (!Modifier.isTransient(modifiers) && !Modifier.isStatic(modifiers)) {
            String name = field.getName();
            try {
                if (fieldExist(name, targetClass) && fieldExist(name, source.getClass())
                        || getterExist(name, source.getClass())
                                && setterExist(name, targetClass, field.getType())) {
                    Object value = getter(name, source.getClass()).invoke(source, new Object[0]);

                    if (setterExist(name, targetClass, field.getType())) {
                        setter(name, targetClass, field.getType()).invoke(target, new Object[] { value });
                    }
                }
            } catch (InvocationTargetException e) {
                // Ignore invalid field
            }
        }

    }

}

From source file:jfix.util.Reflections.java

/**
 * Returns all fields of a given class (including fields from superclasses).
 *///w ww.  j ava 2 s .  c  o  m
public static Set<Field> getFields(Class<?> clazz) {
    Set<Field> result = new HashSet<>();
    for (Class<?> superClass : getSuperClassesAndInterfaces(clazz)) {
        for (Field field : superClass.getDeclaredFields()) {
            field.setAccessible(true);
            result.add(field);
        }
    }
    return result;
}

From source file:net.buffalo.protocal.util.ClassUtil.java

private static HashMap getFieldMap(Class cl) {
    HashMap fieldMap = new HashMap();
    for (; cl != null; cl = cl.getSuperclass()) {
        Field[] fields = cl.getDeclaredFields();
        for (int i = 0; i < fields.length; i++) {
            Field field = fields[i];
            if (Modifier.isTransient(field.getModifiers()) || Modifier.isStatic(field.getModifiers()))
                continue;
            field.setAccessible(true);//from ww  w .  j  av a2 s  .  com
            fieldMap.put(field.getName(), field);
        }
    }

    return fieldMap;
}

From source file:org.LexGrid.LexBIG.caCore.utils.LexEVSCaCoreUtils.java

public static ArrayList<Field> getAllFields(Class clazz) {
    ArrayList<Field> returnFields = new ArrayList<Field>();
    while (clazz != null) {
        Field[] fields = clazz.getDeclaredFields();
        for (Field field : fields) {
            returnFields.add(field);//ww w  . ja  v a  2 s.  c  o m
        }
        clazz = clazz.getSuperclass();
    }
    return returnFields;
}

From source file:arena.utils.ReflectionUtils.java

public static String[] getAttributeNamesUsingGetter(Class<?> entityClass) {
    //        return BeanUtils.getPropertyDescriptors(entityClass);
    Class<?> clsMe = entityClass;
    List<String> voFieldNames = new ArrayList<String>();

    while (clsMe != null) {
        Field[] fields = clsMe.getDeclaredFields();

        for (int n = 0; n < fields.length; n++) {
            int modifiers = fields[n].getModifiers();
            if (!Modifier.isPublic(modifiers) && !Modifier.isStatic(modifiers)) {
                String fieldName = fields[n].getName();
                try {
                    PropertyDescriptor pd = BeanUtils.getPropertyDescriptor(entityClass, fieldName);
                    if (pd.getReadMethod() != null) {
                        voFieldNames.add(fieldName);
                    }/*from   w  w w.j a v a  2  s .  co m*/
                } catch (Throwable err) {
                    // skip
                }
            }
        }

        // Loop back to parent class
        clsMe = clsMe.getSuperclass();
    }
    return voFieldNames.toArray(new String[voFieldNames.size()]);
}

From source file:Main.java

/**
 * Get a list of the name of variables of the class received
 * @param klass Class to get the variable names
 * @return List<String>[] of length 3 with variable names: [0]: primitives, [1]: arrays, [2]: objects
 *//*  ww w.j  a v  a2  s .c  o m*/
public static List<String>[] getVariableNames(Class klass) {

    //array to return
    List<String>[] varNames = new List[3];
    for (int i = 0; i < 3; i++) {
        varNames[i] = new ArrayList<>();
    }

    //add all valid fields
    do {
        Field[] fields = klass.getDeclaredFields();
        for (Field field : fields) {
            if (!Modifier.isTransient(field.getModifiers())) {

                //get the type
                Class type = field.getType();

                if (type.isPrimitive() || (type == Integer.class) || (type == Float.class)
                        || (type == Double.class) || (type == Boolean.class) || (type == String.class)) {
                    varNames[0].add(field.getName());
                } else if (type.isArray()) {
                    varNames[1].add(field.getName());
                } else {
                    varNames[2].add(field.getName());
                }
            }
        }

        klass = klass.getSuperclass();
    } while (klass != null);

    //return array
    return varNames;

}

From source file:NestUtil.java

/**
 * Get all fields of a class.//from   ww w.jav  a  2s .  co m
 * 
 * @param clazz The class.
 * @return All fields of a class.
 */
public static Collection<Field> getFields(Class<?> clazz) {
    //      if (log.isDebugEnabled()) {
    //      log.debug("getFields(Class<?>) - start");
    //}

    Map<String, Field> fields = new HashMap<String, Field>();
    while (clazz != null) {
        for (Field field : clazz.getDeclaredFields()) {
            if (!fields.containsKey(field.getName())) {
                fields.put(field.getName(), field);
            }
        }

        clazz = clazz.getSuperclass();
    }

    Collection<Field> returnCollection = fields.values();
    //   if (log.isDebugEnabled()) {
    //   log.debug("getFields(Class<?>) - end");
    //   }
    return returnCollection;
}

From source file:lite.flow.util.ActivityInspector.java

static public ArrayList<Field> getOutputs(Class<?> clazz) {

    ArrayList<Field> outputs = new ArrayList<>();

    for (Field field : clazz.getDeclaredFields()) {
        Class<?> decl = field.getType();
        if (Output.class.isAssignableFrom(decl)) {
            outputs.add(field);/*from   w  w  w.j  a v  a2  s. co m*/
        }
    }

    return outputs;
}

From source file:com.shrj.util.ReflectionUtils.java

public static String getAnnotatedFieldName(Class clazz, Class<? extends Annotation> annotation) {
    Field[] fields = clazz.getDeclaredFields();
    for (Field field : fields) {
        if (field.isAnnotationPresent(annotation)) {
            return field.getName();
        }/*from w w  w  . j  a va 2s. co m*/
    }
    return null;
}

From source file:com.nridge.core.base.field.data.DataBeanBag.java

/**
 * Accepts a POJO containing one or more public fields and
 * creates a DataBag from them.  The DataBeanObject1 test
 * class provides a reference example.//from   w  w  w .j ava 2 s.  co m
 *
 * @param anObject POJO instance.
 *
 * @return Data bag instance populated with field information.
 *
 * @throws NSException Thrown if object is null.
 * @throws NoSuchFieldException Thrown if field does not exist.
 * @throws IllegalAccessException Thrown if access is illegal.
 */
public static DataBag fromFieldsToBag(Object anObject)
        throws NSException, NoSuchFieldException, IllegalAccessException {
    DataField dataField;
    boolean isPublicAccess;

    if (anObject == null)
        throw new NSException("Object is null");

    DataBag dataBag = new DataBag(anObject.toString());

    Class<?> objClass = anObject.getClass();
    Field[] fieldArray = objClass.getDeclaredFields();
    for (Field objField : fieldArray) {
        isPublicAccess = Modifier.isPublic(objField.getModifiers());
        if (!isPublicAccess)
            objField.setAccessible(true);
        dataField = reflectField(anObject, objField);
        dataBag.add(dataField);

    }

    return dataBag;
}