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:net.minecraftforge.fml.relauncher.ReflectionHelper.java

public static <T, E> void setPrivateValue(Class<? super T> classToAccess, T instance, E value, int fieldIndex) {
    try {/*  w ww. jav  a 2 s  .c  om*/
        Field f = classToAccess.getDeclaredFields()[fieldIndex];
        f.setAccessible(true);
        f.set(instance, value);
    } catch (Exception e) {
        throw new UnableToAccessFieldException(new String[0], e);
    }
}

From source file:net.minecraftforge.fml.relauncher.ReflectionHelper.java

@SuppressWarnings("unchecked")
public static <T, E> T getPrivateValue(Class<? super E> classToAccess, @Nullable E instance, int fieldIndex) {
    try {// w ww.j a va  2s . co  m
        Field f = classToAccess.getDeclaredFields()[fieldIndex];
        f.setAccessible(true);
        return (T) f.get(instance);
    } catch (Exception e) {
        throw new UnableToAccessFieldException(new String[0], e);
    }
}

From source file:com.frand.easyandroid.db.sql.FFSqlBuilder.java

public static FFArrayList getFieldsAndValue(Object entity)
        throws FFDBException, IllegalArgumentException, IllegalAccessException {
    FFArrayList arrayList = new FFArrayList();
    if (entity == null) {
        throw new FFDBException("?");
    }/*from w  w w . j  a va2 s.c  o m*/
    Class<?> clazz = entity.getClass();
    Field[] fields = clazz.getDeclaredFields();
    for (Field field : fields) {
        if (!FFDBUtils.isTransient(field) && FFFieldUtil.isBaseDateType(field)) {
            FFPrimaryKey annotation = field.getAnnotation(FFPrimaryKey.class);
            if (annotation != null && annotation.autoIncrement()) {
            } else {
                String columnName = FFDBUtils.getColumnByField(field);
                field.setAccessible(true);
                if (columnName == null || columnName.equals("")) {
                    columnName = field.getName();
                }
                String value = "";
                if (field.getType().equals(Date.class)) {
                    value = field.get(entity) != null ? FFDBUtils.dateToString((Date) field.get(entity)) : "";
                } else {
                    value = field.get(entity) != null ? field.get(entity).toString() : "";
                }
                arrayList.add(columnName, value);
            }
        }
    }
    return arrayList;
}

From source file:br.com.bea.androidtools.api.model.EntityUtils.java

public static final <E extends Entity<?>> List<Field> columnFields(final Class<E> targetClass) {
    if (null == EntityUtils.columnsCache.get(targetClass.getName().hashCode())) {
        final List<Field> fields = new LinkedList<Field>();
        for (final Field field : targetClass.getDeclaredFields())
            if (field.isAnnotationPresent(Column.class))
                fields.add(field);/*from w ww.ja va2  s  .  c om*/
        EntityUtils.columnsCache.put(targetClass.getName().hashCode(), fields);
    }
    return EntityUtils.columnsCache.get(targetClass.getName().hashCode());
}

From source file:org.fastmongo.odm.util.ReflectionUtils.java

/**
 * Attempt to find a {@link Field field} on the supplied {@link Class} with the
 * supplied {@code name} and/or {@link Class type}. Searches all superclasses
 * up to {@link Object}./*from   ww  w.  j  a  v  a2  s  .co m*/
 *
 * @param clazz the class to introspect
 * @param name  the name of the field (may be {@code null} if type is specified)
 * @param type  the type of the field (may be {@code null} if name is specified)
 * @return the corresponding Field object, or {@code null} if not found
 */
public static Field findField(Class<?> clazz, String name, Class<?> type) {
    Class<?> searchType = clazz;
    while (!Object.class.equals(searchType) && searchType != null) {
        Field[] fields = searchType.getDeclaredFields();
        for (Field field : fields) {
            if ((name == null || name.equals(field.getName()))
                    && (type == null || type.equals(field.getType()))) {
                return field;
            }
        }
        searchType = searchType.getSuperclass();
    }
    return null;
}

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

public static Object setFieldValue(Object input, Object value, String fieldName) throws Exception {
    Class searchClass = input.getClass();

    while (searchClass != null) {
        Field[] fields = searchClass.getDeclaredFields();
        for (Field field : fields) {
            if (field.getName().equals(fieldName)) {
                field.setAccessible(true);
                //Check to see if we're trying to set a int, long, etc with a String
                if (field.getType().getName().equals("java.lang.Long")) {
                    if (value instanceof String) {
                        field.set(input, Long.getLong((String) value));
                    } else {
                        field.set(input, value);
                    }//www. j  av  a2 s . c om
                } else if (field.getType().getName().equals("java.lang.Integer")) {
                    if (value instanceof String) {
                        field.set(input, Integer.getInteger((String) value));
                    } else {
                        field.set(input, value);
                    }
                } else {
                    field.set(input, value);
                }
            }
        }
        searchClass = searchClass.getSuperclass();
    }
    return input;
}

From source file:br.com.bea.androidtools.api.model.EntityUtils.java

public static final <E extends ValueObject> List<Field> metadataFields(final Class<E> targetClass) {
    if (null == EntityUtils.metadatasCache.get(targetClass.getName().hashCode())) {
        final List<Field> fields = new LinkedList<Field>();
        for (final Field field : targetClass.getDeclaredFields())
            if (field.isAnnotationPresent(Metadata.class))
                fields.add(field);//w  w w.j a v  a 2 s .com
        EntityUtils.metadatasCache.put(targetClass.getName().hashCode(), fields);
    }
    return EntityUtils.metadatasCache.get(targetClass.getName().hashCode());
}

From source file:Main.java

public static <S, T> T castObject(S source, Class<T> targetClass)
        throws IllegalAccessException, InstantiationException {
    T newInstance = targetClass.newInstance();
    for (Field field : source.getClass().getDeclaredFields()) {
        for (Field fieldTarget : targetClass.getDeclaredFields()) {
            if (isFieldsEqual(field, fieldTarget)) {
                setField(getField(field, source), fieldTarget, newInstance);
            }/*  www  .jav a 2  s. c o m*/
        }
    }
    return newInstance;
}

From source file:com.tridion.storage.si4t.JPASearchDAOFactory.java

private static Field getPrivateFieldRec(final Class<?> clazz, final String fieldName, Logger log) {
    for (Field field : clazz.getDeclaredFields()) {
        if (fieldName.equals(field.getName())) {
            return field;
        }// w w w .j  a  v a 2s .  c o  m
    }
    final Class<?> superClazz = clazz.getSuperclass();

    if (superClazz != null) {
        return getPrivateFieldRec(superClazz, fieldName, log);
    }

    return null;
}

From source file:edu.mayo.cts2.framework.webapp.rest.view.jsp.Beans.java

/**
 * Inspect./* w  ww  .j a v a 2  s  .  c  o m*/
 *
 * @param bean the bean
 * @return the list
 */
public static List<Map.Entry<String, Object>> inspect(Object bean) {
    Map<String, Object> props = new LinkedHashMap<String, Object>();

    Class<?> clazz = bean.getClass();

    while (clazz != null) {
        for (Field field : clazz.getDeclaredFields()) {
            field.setAccessible(true);
            String name = field.getName();

            Object value;
            try {
                value = field.get(bean);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }

            if (value != null) {
                props.put(name, value);
            }
        }
        clazz = clazz.getSuperclass();
    }

    List<Map.Entry<String, Object>> list = new ArrayList<Map.Entry<String, Object>>(props.entrySet());

    Collections.sort(list, BEAN_COMPARATOR);

    return list;
}