CODEWITHSUNDEEP
java
Mykhaylo Adamovych
Mykhaylo Adamovych

Reputation: 20966

The as operator to be used to perform conversions between compatible types

Is there any implementatin of as operator in Java?
I'm looking something as simple as following snippet of code in some shared library. 

public static <T> T as(Class<T> clazz, Object object) {
    if (object == null)
        return null;
    if (clazz.isAssignableFrom(object.getClass()))
        return (T) object;
    return null;
}

Something I could use like 

public boolean equals(Object obj) {
    Peer peer = as(Peer.class, obj);
    if (peer == null) return false;
    ...
}

Upvotes: 0

Views: 30

Answers (1)

Kayaman
Kayaman

Reputation: 73558

No, the equivalent idiom in Java would be

public boolean equals(Object obj) {
    if(!obj instanceof Peer)
        return false;
    Peer peer = (Peer)obj;
    ...
}

Upvotes: 3

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