Example usage for java.lang.reflect Field getType

Introduction

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

Prototype

public Class<?> getType() 

Source Link

Document

Returns a Class object that identifies the declared type for the field represented by this Field object.

Usage

From source file:Main.java

private static Parcelable.Creator getCreator(Field field) throws IllegalAccessException {
    try {/*w ww.  j  a  v a  2s. c  o m*/
        return (Parcelable.Creator) field.getType().getDeclaredField("CREATOR").get(null);
    } catch (NoSuchFieldException e) {
        throw new RuntimeException(field.getType() + " is an Parcelable without CREATOR");
    }
}

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From source file:Main.java

protected static void setEnumField(Object obj, String name, String value)
        throws SecurityException, NoSuchFieldException, IllegalArgumentException, IllegalAccessException {
    final Field f = obj.getClass().getField(name);
    f.set(obj, Enum.valueOf((Class<Enum>) f.getType(), value));
}

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From source file:Main.java

/**
 * Finds a set of constant static byte field declarations in the class that have the given value
 * and whose name match the given pattern
 * @param cl class to search in/* ww w. j  ava 2 s. c o  m*/
 * @param value value of constant static byte field declarations to match
 * @param regexPattern pattern to match against the name of the field     
 * @return a set of the names of fields, expressed as a string
 */
private static String findConstByteInClass(Class<?> cl, byte value, String regexPattern) {
    Field[] fields = cl.getDeclaredFields();
    Set<String> fieldSet = new HashSet<String>();
    for (Field f : fields) {
        try {
            if (f.getType() == Byte.TYPE && (f.getModifiers() & Modifier.STATIC) != 0
                    && f.getName().matches(regexPattern) && f.getByte(null) == value) {
                fieldSet.add(f.getName());
            }
        } catch (IllegalArgumentException e) {
            //  ignore
        } catch (IllegalAccessException e) {
            //  ignore
        }
    }
    return fieldSet.toString();
}

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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 {/* w  w  w. ja  va  2s.c o 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()]);
}

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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  ww w  . j a v a  2  s  .  c om*/
    }
    return obj;
}

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From source file:Main.java

/**
 * getChildObjs/*from   www .  jav a2s  .co  m*/
 *
 * @param object the obj to save to db ,this object contains the property private List<Child> children;
 * @return the List<Child> value
 */
public static List<List> getChildObjs(Object object) {
    Field[] fields = object.getClass().getDeclaredFields();
    List<List> result = new ArrayList<>();
    for (Field field : fields) {
        if ("java.util.List".equals(field.getType().getName())) {
            List list = null;
            try {
                field.setAccessible(true);
                list = (List) field.get(object);
                result.add(list);
            } catch (IllegalAccessException e) {
                e.printStackTrace();
            }
        }
    }
    return result;
}

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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);
        }//from  w  w  w.j  a v a 2  s. c om
    }
    return obj;
}

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From source file:Main.java

public static String getTypeForField(Field field) {
    Class type = field.getType();
    // Animation/*from   w  w w . j  av a 2s .c o  m*/
    if (type.isAssignableFrom(Animation.class))
        return "anim";
    // Color State List
    else if (type.isAssignableFrom(ColorStateList.class))
        return "color";
    // Drawable
    else if (type.isAssignableFrom(Drawable.class))
        return "drawable";
    // String
    else if (type.isAssignableFrom(String.class))
        return "string";
    // String Array
    else if (type.isArray())
        return "array";
    // TODO: Recognize plural strings if possible
    //        else if (type.isAssignableFrom(String.class))
    //            return "plural";
    // Boolean
    else if (type.isAssignableFrom(Boolean.TYPE) || type.isAssignableFrom(Boolean.class))
        return "bool";
    // Integer
    else if (type.isAssignableFrom(Integer.TYPE) || type.isAssignableFrom(Integer.class))
        return "integer";
    // Dimen
    else if (type.isAssignableFrom(Float.TYPE) || type.isAssignableFrom(Float.class))
        return "dimen";

    throw new RuntimeException("No suitable type found for " + field.getName() + "of class " + type.getName());
}

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From source file:Main.java

public static Object mergedObject(Object oldObject, Object newObject) throws Exception {
    Class<?> cls = newObject.getClass();
    Field[] fields = cls.getDeclaredFields();
    for (Field field : fields) {
        Class<?> clsType = field.getType();
        String name = field.getName();
        String method = name.substring(0, 1).toUpperCase() + name.substring(1, name.length());
        String strGet = "get" + method;
        Method methodGet = cls.getDeclaredMethod(strGet);
        Object object = methodGet.invoke(newObject);
        if (object != null) {
            String strSet = "set" + method;
            Method methodSet = cls.getDeclaredMethod(strSet, clsType);
            Object objValue = typeConversion(clsType, object.toString());
            methodSet.invoke(oldObject, objValue);
        }// w  w  w .  j  av a  2s .c om
    }
    return oldObject;
}

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From source file:Main.java

public static String createTableSql(Class<?> classs, String tableName, String... extraColumns) {
    mBuffer.setLength(0);//from  w w w  .  j  a v  a 2 s  .  c  o m
    mBuffer.append("CREATE TABLE IF NOT EXISTS ");
    if (!TextUtils.isEmpty(tableName)) {
        mBuffer.append(tableName);
    } else {
        String className = classs.getSimpleName();
        if (className.contains("[]")) {
            throw new IllegalArgumentException("Can not create array class table");
        }
        mBuffer.append(classs.getSimpleName());
    }
    mBuffer.append("(" + BaseColumns._ID + " INTEGER PRIMARY KEY AUTOINCREMENT, ");
    Field[] fields = classs.getDeclaredFields();
    for (int i = 0; i < fields.length; i++) {
        Field field = fields[i];
        if (field.getType() == Integer.class) {
            mBuffer.append(field.getName() + " INTEGER,");
        } else if (field.getType() == Double.class || field.getType() == Float.class) {
            mBuffer.append(field.getName() + " REAL,");
        } else if (field.getType() == String.class) {
            mBuffer.append(field.getName() + " TEXT,");
        } else if (field.getType() == Boolean.class) {
            mBuffer.append(field.getName() + " INTEGER,");
        } else if (field.getType() == List.class || field.getType() == ArrayList.class) {
            mBuffer.append(field.getName() + " TEXT,");
        }
    }
    if (extraColumns != null && extraColumns.length != 0) {
        for (int i = 0; i < extraColumns.length; i++) {
            mBuffer.append(extraColumns[i]);
            if (i != extraColumns.length - 1) {
                mBuffer.append(",");
            } else {
                mBuffer.append(")");
            }
        }
    }
    return mBuffer.toString();
}

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