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javaobjectfieldtransient

Java: accessing transient object fields inside class

Accessing private transient object fields from any method in class must be controlled with some code. What is the best practice?

private transient MyClass object = null;

internal get method:

private MyClass getObject() {
    if (object == null)
        object = new MyClass();
    return object;
}
// use...
getObject().someWhat();

or "make sure" method:

private void checkObject() {
    if (object == null)
        object = new MyClass();
}
// use...
checkObject();
object.someWhat();

or something clever, more safe or more powerful?

Solution

  • Transient fields are lost at serialization but you need them only after deserialization, so you have to restore them to what you need in the readObject method...