Java Object Type Case castOrNull(Object o, Class cls)

Description

Cast object to class or return null.

License

LGPL

Parameter

Parameter	Description
o	The object to cast
cls	The class to cast o to

Return

o cast as cls. null if o is null or not a instance of cls.

Declaration

public static <T> T castOrNull(Object o, Class<T> cls) 

Method Source Code

//package com.java2s;
//License from project: LGPL 

public class Main {
    /**/*  www  . j a  v  a2 s.c om*/
     * Cast object to class or return null.
     * @param o The object to cast
     * @param cls The class to cast o to
     * @return o cast as cls. null if o is null or not a instance of cls.
     */
    public static <T> T castOrNull(Object o, Class<T> cls) {
        if (o == null)
            return null;
        if (cls.isInstance(o))
            return cls.cast(o);
        return null;
    }
}

Related

1. castObject(Object fromObj, Class toClass)
2. castObject(Object ob)
3. castOrDefault(Class type, Object value, T defaultValue, boolean allowNull)
4. castOrDefault(Object o, Class type, T def)
5. castOrNull(Object o, Class clazz)
6. castOrThrowError(Class clazz, T1 object, String messageTemplate)
7. castSafe(Class inClass, Object inValue, T inDefault)
8. caststring1(String tmpq)
9. castTo(Object o, Class cls)