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:Main.java

public static String[] getClassStaticFieldNames(Class c, Type fieldType, String nameContains) {
    Field[] fields = c.getDeclaredFields();
    List<String> list = new ArrayList<>();
    for (Field field : fields) {
        try {/*  www  .j a v  a 2 s. co m*/
            boolean isString = field.getType().equals(fieldType);
            boolean containsExtra = field.getName().contains(nameContains);
            boolean isStatic = Modifier.isStatic(field.getModifiers());
            if (field.getType().equals(String.class) && field.getName().contains("EXTRA_")
                    && Modifier.isStatic(field.getModifiers()))
                list.add(String.valueOf(field.get(null)));
        } catch (IllegalAccessException iae) {
            Log.d(TAG,
                    "!!!!!!!!!!!! class Static field, illegal access exception message: " + iae.getMessage());
        }
    }
    return list.toArray(new String[list.size()]);
}

From source file:Main.java

public static ArrayList<String> getFields(Class<?> cls) {
    ArrayList<String> fieldList = new ArrayList<String>();
    Field[] fields = cls.getDeclaredFields();
    for (Field f : fields) {
        fieldList.add(f.getName());//www. j a v a  2s  . c  om
    }
    return fieldList;
}

From source file:Main.java

public static Object setObjectFileValue(Object obj, Map<String, String> data) throws Exception {
    Class<?> cls = obj.getClass();
    Field[] fields = cls.getDeclaredFields();
    for (Field field : fields) {
        Class<?> clsType = field.getType();
        String name = field.getName();
        String strSet = "set" + name.substring(0, 1).toUpperCase() + name.substring(1, name.length());
        Method methodSet = cls.getDeclaredMethod(strSet, clsType);
        if (data.containsKey(name)) {
            Object objValue = typeConversion(clsType, data.get(name));
            methodSet.invoke(obj, objValue);
        }//from www.  j  a v  a 2 s.co  m
    }
    return obj;
}

From source file:Main.java

public static Field[] findFields(Class<?> clazz) {
    Field[] result = null;/*from ww w .  ja va2  s. c  o  m*/
    if (clazz != null) {
        result = clazz.getDeclaredFields();
    }
    return result;
}

From source file:com.thinkbiganalytics.metadata.jpa.support.QueryDslPathInspector.java

/**
 * returns a Map of the Field Name and the respective Field object for a given class
 *//*w  w  w.j  av a2  s  .co  m*/
public static Map<String, Field> getFields(Class<?> cl) {
    return Arrays.asList(cl.getDeclaredFields()).stream().collect(Collectors.toMap(f -> f.getName(), f -> f));
}

From source file:Main.java

public static Object setFieldValue(Map<String, String> map, Class<?> cls) throws Exception {
    Field[] fields = cls.getDeclaredFields();
    Object obj = cls.newInstance();
    for (Field field : fields) {
        Class<?> clsType = field.getType();
        String name = field.getName();
        String strSet = "set" + name.substring(0, 1).toUpperCase() + name.substring(1, name.length());
        Method methodSet = cls.getDeclaredMethod(strSet, clsType);
        if (map.containsKey(name)) {
            Object objValue = typeConversion(clsType, map.get(name));
            methodSet.invoke(obj, objValue);
        }/*  w  ww  . j a  v a 2s.  co m*/
    }
    return obj;
}

From source file:Main.java

public static void classInspector(Object object) {
    Class cls = object.getClass();
    System.out.println(cls.toString());
    Field[] fieldlist = cls.getDeclaredFields();
    for (int i = 0; i < fieldlist.length; i++) {
        Field fld = fieldlist[i];

        System.out.println("name = " + fld.getName());
        System.out.println("decl class = " + fld.getDeclaringClass());
        System.out.println("type = " + fld.getType());
        System.out.println("-----");
    }/*from w ww.  j  a v  a 2 s  . c  om*/
}

From source file:Main.java

/**
 * Set the fields' value.//from  ww  w .ja  v  a  2  s .co  m
 * 
 * @param bean
 * @param valMap
 */
public static void setFieldValues(Object bean, Map<String, Object> valMap) {
    Class<?> cls = bean.getClass();
    //Get all fields.
    Field[] fields = cls.getDeclaredFields();

    for (Field field : fields) {
        if (valMap.containsKey(field.getName())) {
            field.setAccessible(true);
            try {
                field.set(bean, valMap.get(field.getName()));
            } catch (IllegalArgumentException e) {
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }
    }
}

From source file:Main.java

public static <T> T converMap2Object(Map<String, String> map, Class<T> cls) {

    Field[] fields = cls.getDeclaredFields();

    T t = null;/*  w w  w  .j a v a 2  s.co m*/
    try {
        t = (T) cls.newInstance();
    } catch (InstantiationException e) {
        e.printStackTrace();
    } catch (IllegalAccessException e) {
        e.printStackTrace();
    }
    for (Field f : fields) {
        f.setAccessible(true);
        invokeSet(t, f.getName(), map.get(f.getName()));
    }
    return t;
}

From source file:ReflectApp.java

static void describeClassOrInterface(Class className, String name) {
    displayModifiers(className.getModifiers());
    displayFields(className.getDeclaredFields());
    displayMethods(className.getDeclaredMethods());

    if (className.isInterface()) {
        System.out.println("Interface: " + name);
    } else {/*from  w w w  .  j ava2s . co  m*/
        System.out.println("Class: " + name);
        displayInterfaces(className.getInterfaces());
        displayConstructors(className.getDeclaredConstructors());
    }
}