Compare object type

Question

I don't know how to perform type checking on newEntry, I want to make sure that it is of type MyTable (without creating an object of MyTable).

public static boolean add(String table, Object newEntry)
{
    boolean result; 
    if (table.equals("MyTable") && newEntry.getClass() == MyTable.getClass())
    {
         ...
    }   
}

My problem is:

newEntry.getClass() == MyTable.getClass(). 

Note: MyTable is a class name, not an object.

Answer 1

Basically what you want is:

isAssignableFrom

Take a look at: http://www.ralfebert.de/blog/java/isassignablefrom/

So, in your case, you want:

MyTable.class.isAssignableFrom(newEntry.getClass())