Example usage for java.lang Class getDeclaredFields

List of usage examples for java.lang Class getDeclaredFields

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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:de.hska.ld.content.dto.CommentDto.java

public CommentDto(Comment comment) {
    try {//from   www. jav a 2s .c  om
        // extract and set values per reflection
        Class subclass = comment.getClass();
        Class superclass = subclass.getSuperclass();
        while (superclass != null) {
            Field[] declaredFields = superclass.getDeclaredFields();
            for (Field commentfield : declaredFields) {
                commentfield.setAccessible(true);
                Object obj = commentfield.get(comment);
                commentfield.set(this, obj);
            }
            superclass = superclass.getSuperclass();
        }
        Field[] declaredFields = comment.getClass().getDeclaredFields();
        for (Field commentfield : declaredFields) {
            commentfield.setAccessible(true);
            Object obj = commentfield.get(comment);
            commentfield.set(this, obj);
        }
        this.setId(comment.getId());
    } catch (IllegalAccessException e) {
        //
    }
    this.getJsonParentId();
}

From source file:management.limbr.test.util.PojoTester.java

@SuppressWarnings("unchecked")
public void test() {
    Class<T> clazz = (Class<T>) pojo.getClass();

    for (Field field : clazz.getDeclaredFields()) {
        String fieldName = field.getName();
        Method getter = findGetter(clazz, fieldName, field.getType().equals(Boolean.class));
        if (getter != null) {
            testGetter(getter, field);/* ww  w.j  av a 2s  .c om*/
        }

        Method setter = findSetter(clazz, fieldName, field.getType());
        if (setter != null) {
            testSetter(setter, field);
        }
    }
}

From source file:com.tasktop.c2c.server.common.service.tests.http.MultiUserClientHttpRequestFactoryTest.java

private HttpClient getHttpClient(ClientHttpRequest request) {
    Class<?> clazz = request.getClass();
    while (clazz != Object.class) {
        for (Field field : clazz.getDeclaredFields()) {
            if (HttpClient.class.isAssignableFrom(field.getType())) {
                field.setAccessible(true);
                try {
                    return (HttpClient) field.get(request);
                } catch (Exception e) {
                    throw new IllegalStateException(e);
                }//  w  w w. j ava 2 s  .c om
            }
        }
        clazz = clazz.getSuperclass();
    }
    throw new IllegalStateException();
}

From source file:net.larry1123.elec.util.config.ConfigFile.java

/**
 * Will search Class and super Classes to find fields for use and add them to our known field list.
 *
 * @param config    The Object to use to search
 * @param lastClass Mostly an internal PlaceHolder
 *///from  w ww  . j a va2  s .  co m
protected void collectFields(ConfigBase config, Class lastClass) {
    Class currentClass = lastClass == null ? config.getClass() : lastClass.getSuperclass();
    for (Field field : currentClass.getDeclaredFields()) {
        if (field.isAnnotationPresent(ConfigField.class)) {
            configFields = ArrayUtils.add(configFields, field);
        }
    }
    if (currentClass.getSuperclass() != null) {
        collectFields(config, currentClass);
    }
}

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

/**
 * where?where?primaryKey//from w  ww. j  ava 2 s  .c o  m
 * 
 * @param entity
 * @return
 * @throws IllegalArgumentException
 * @throws IllegalAccessException
 * @throws FFDBException
 */
public FFArrayList buildWhere(Object entity)
        throws IllegalArgumentException, IllegalAccessException, FFDBException {
    Class<?> clazz = entity.getClass();
    FFArrayList whereArrayList = new FFArrayList();
    Field[] fields = clazz.getDeclaredFields();
    for (Field field : fields) {
        field.setAccessible(true);
        if (!FFDBUtils.isTransient(field) && FFFieldUtil.isBaseDateType(field)) {
            Annotation annotation = field.getAnnotation(FFPrimaryKey.class);
            if (annotation != null) {
                String columnName = FFDBUtils.getColumnByField(field);
                whereArrayList.add(
                        (columnName != null && !columnName.equals("")) ? columnName : field.getName(),
                        field.get(entity).toString());
            }
        }
    }
    if (whereArrayList.isEmpty()) {
        throw new FFDBException("?Where??");
    }
    return whereArrayList;
}

From source file:com.hc.wx.server.common.bytecode.ReflectUtils.java

private static Object getEmptyObject(Class<?> returnType, Map<Class<?>, Object> emptyInstances, int level) {
    if (level > 2)
        return null;
    if (returnType == null) {
        return null;
    } else if (returnType == boolean.class || returnType == Boolean.class) {
        return false;
    } else if (returnType == char.class || returnType == Character.class) {
        return '\0';
    } else if (returnType == byte.class || returnType == Byte.class) {
        return (byte) 0;
    } else if (returnType == short.class || returnType == Short.class) {
        return (short) 0;
    } else if (returnType == int.class || returnType == Integer.class) {
        return 0;
    } else if (returnType == long.class || returnType == Long.class) {
        return 0L;
    } else if (returnType == float.class || returnType == Float.class) {
        return 0F;
    } else if (returnType == double.class || returnType == Double.class) {
        return 0D;
    } else if (returnType.isArray()) {
        return Array.newInstance(returnType.getComponentType(), 0);
    } else if (returnType.isAssignableFrom(ArrayList.class)) {
        return new ArrayList<Object>(0);
    } else if (returnType.isAssignableFrom(HashSet.class)) {
        return new HashSet<Object>(0);
    } else if (returnType.isAssignableFrom(HashMap.class)) {
        return new HashMap<Object, Object>(0);
    } else if (String.class.equals(returnType)) {
        return "";
    } else if (!returnType.isInterface()) {
        try {//from  ww w .j  av a  2 s. co m
            Object value = emptyInstances.get(returnType);
            if (value == null) {
                value = returnType.newInstance();
                emptyInstances.put(returnType, value);
            }
            Class<?> cls = value.getClass();
            while (cls != null && cls != Object.class) {
                Field[] fields = cls.getDeclaredFields();
                for (Field field : fields) {
                    Object property = getEmptyObject(field.getType(), emptyInstances, level + 1);
                    if (property != null) {
                        try {
                            if (!field.isAccessible()) {
                                field.setAccessible(true);
                            }
                            field.set(value, property);
                        } catch (Throwable e) {
                        }
                    }
                }
                cls = cls.getSuperclass();
            }
            return value;
        } catch (Throwable e) {
            return null;
        }
    } else {
        return null;
    }
}

From source file:com.legstar.jaxb.plugin.EnumCases.java

/**
 * Check Get Set methods on enumerations.
 * @throws Exception if test fails/*  w w w  . j  ava  2s .c  o m*/
 */
public void testGetSetEnum() throws Exception {
    /* Load the generated class */
    URI loc = GEN_SRC_DIR.toURI();
    URL[] ua = { loc.toURL() };
    URLClassLoader cl = new URLClassLoader(ua);
    Class<?> clazzSearchRequestType = cl.loadClass("com.legstar.test.coxb.enumvar.SearchRequestType");
    Object searchRequest = clazzSearchRequestType.newInstance();

    /* Create an Enum type with a value */
    Class<?> clazzSafeSearchOptionsType = cl.loadClass("com.legstar.test.coxb.enumvar.SafeSearchOptionsType");
    Field[] fields = clazzSafeSearchOptionsType.getDeclaredFields();
    for (Field field : fields) {
        _log.debug(field.getName());
    }

    /* Create a new enum type with a value */
    Method getValueMethod = clazzSafeSearchOptionsType.getMethod("value", (Class[]) null);
    Method fromValueMethod = clazzSafeSearchOptionsType.getMethod("fromValue",
            new Class[] { getValueMethod.getReturnType() });
    Object safeSearchOption = fromValueMethod.invoke(null, new Object[] { "Strict" });

    /* Get the value of an Enum */
    getValueMethod.invoke(safeSearchOption, (Object[]) null);

    /* Set the Enum value*/
    Class<?>[] param = { clazzSafeSearchOptionsType };
    String setterName = "setSafeSearch";
    Method setter = searchRequest.getClass().getMethod(setterName, param);
    setter.invoke(searchRequest, safeSearchOption);

    String getterName = "getSafeSearch";
    Method getter = searchRequest.getClass().getMethod(getterName);
    Object result = getter.invoke(searchRequest);
    assertEquals("Strict", getValueMethod.invoke(result, (Object[]) null));
}

From source file:com.github.tddts.jet.config.spring.postprocessor.LoadContentAnnotationBeanPostProcessor.java

@Override
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
    Pair<Class<?>, Object> typeObjectPair = SpringUtil.checkForDinamicProxy(bean);
    Class<?> type = typeObjectPair.getLeft();
    Object target = typeObjectPair.getRight();

    try {//from w w  w  .  j  a  v a2 s  . c  o  m

        for (Field field : type.getDeclaredFields()) {
            if (field.isAnnotationPresent(LoadContent.class) && String.class.equals(field.getType())) {

                field.setAccessible(true);
                String fileName = getFileName(target, field);

                if (!StringUtils.isEmpty(fileName)) {
                    field.set(target, Util.loadContent(fileName));
                }
            }
        }
    } catch (Exception e) {
        throw new BeanInitializationException(e.getMessage(), e);
    }

    return bean;
}

From source file:de.hsos.ecs.richwps.wpsmonitor.boundary.cli.command.annotation.CommandAnnotationProcessor.java

private List<Field> getFields(final Class<?> type) {
    List<Field> fields = new ArrayList<>();

    fields.addAll(Arrays.asList(type.getDeclaredFields()));

    if (type.getSuperclass() != null) {
        fields.addAll(getFields(type.getSuperclass()));
    }//w  ww .j  a  va 2s . com

    return fields;
}

From source file:jp.gr.java_conf.ka_ka_xyz.processor.AnnotationProcessor.java

private void getFields(Class clazz, List<Field> fields) {
    if (clazz == null) {
        return;/*  ww  w. j a v a  2s. c  o  m*/
    }
    Field[] temp = clazz.getDeclaredFields();
    if (temp != null) {
        for (Field field : temp) {
            fields.add(field);
        }
    }
    Class superClazz = clazz.getSuperclass();
    if (superClazz != null) {
        getFields(superClazz, fields);
    }
}