Class.getConstructor () and table settings.

Hello again.

This code is by hand. Yet once again, I apologize if I do not have the syntax quite right... Please correct if necessary.

I defined a class as follows:
public class DefinedType{
    Type(Arg1 arg1, Arg2[]arg2){
        /*Do something*/
    }
}
Now I use the Class.newInstance () method to create DefinedTypes, because I do not know at the time of the compilation if I need to create a Type, or something else.
    ...
    Class cl=null;
    try{
        cl=Class.forName(definedTypeName); //Could be a DefinedType or else. The constructor of whatever else it might be has the same parameters.
    }catch(ClassNotFoundException x){/*Oops... give up.*/}

    Class[]paa=newClass[2];
    paa[0]=Arg1.class;
    // What does paa[1] look like?

    Constructor co=null;
    try{
        co=cl.getConstructor(paa);
    }catch(NoSuchMethodException x){/*Oops... give up.*/}

    Object ara=new Object[2];
    ara[0]=new Arg1();
    //What does ara[1] look like?

    Object o=null;
    try{
        o=co.newInstance(ara);
    }catch(Exception x){/*Oops... give up./}
If we consider this example once again, there are two places where I don't know what to do with. What I put in these two places.

Thank you

Owen.

Owen Thomas wrote:
Hello again.

This code is by hand. Yet once again, I apologize if I do not have the syntax quite right... Please correct if necessary.

I defined a class as follows:

public class DefinedType{
Type(Arg1 arg1, Arg2[]arg2){
/*Do something*/
}
}

Type is not a constructor for a class named DefinedType. Constructors have the same name as the class.

Now I use the Class.newInstance () method to create DefinedTypes, because I do not know at the time of the compilation if I need to create a Type, or something else.

    ...
Class cl=null;
try{
cl=Class.forName(definedTypeName); //Could be a DefinedType or else. The constructor of whatever else it might be has the same parameters.
}catch(ClassNotFoundException x){/*Oops... give up.*/}

Class[]paa=newClass[2];
paa[0]=Arg1.class;
// What does paa[1] look like?

Arg2 [] .class

Constructor co=null;
try{
co=cl.getConstructor(paa);
}catch(NoSuchMethodException x){/*Oops... give up.*/}

Object ara=new Object[2];
ara[0]=new Arg1();
//What does ara[1] look like?

Well, how do I create tables?

If we consider this example once again, there are two places where I don't know what to do with. What I put in these two places.

Thank you

Owen.

Published by: Kayaman on October 21, 2010 09:27

Tags: Java

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