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/*
* This code was generated by ojc.
*/
/*
* AutoImplementerClass.oj
*
* Apr 29, 1999, by Michiaki Tatsubori
* Feb 2, 1999, by Michiaki Tatsubori
*/
package examples.autoimp;
import openjava.mop.*;
import openjava.ptree.*;
import openjava.syntax.*;
/**
* The metaclass <code>AutoImprementerClass</code> provides classes
* with a facility automatically implementing null methods for
* not implemented methods.
* <p>
*
* @author Michiaki Tatsubori
* @version 1.0
* @see openjava.mop.OJClass#translateDefinition()
* @see openjava.mop.OJClass#isRegisteredModifier()
*/
public class AutoImplementerClass extends OJClass
{
public void translateDefinition()
throws MOPException
{
OJMethod[] methods = getInheritedMethods();
for (int i = 0; i < methods.length; ++i) {
if (!methods[i].getModifiers().isAbstract() || hasDeclaredMethod( methods[i] )) {
continue;
}
addMethod( makeNullMethod( methods[i] ) );
}
}
private boolean hasDeclaredMethod( OJMethod m )
{
try {
getDeclaredMethod( m.getName(), m.getParameterTypes() );
return true;
} catch ( NoSuchMemberException e ) {
return false;
}
}
private OJMethod makeNullMethod( OJMethod m )
throws MOPException
{
OJMethod result = new OJMethod( this, m.getModifiers().remove( OJModifier.ABSTRACT ), m.getReturnType(), m.getName(), m.getParameterTypes(), m.getExceptionTypes(), null );
StatementList body = new StatementList();
if (m.getReturnType() == OJSystem.VOID) {
body.add( new ReturnStatement() );
} else {
body.add( new ReturnStatement( Literal.constantNull() ) );
}
result.setBody( body );
return result;
}
public AutoImplementerClass( openjava.mop.Environment oj_param0, openjava.mop.OJClass oj_param1, openjava.ptree.ClassDeclaration oj_param2 )
{
super( oj_param0, oj_param1, oj_param2 );
}
public AutoImplementerClass( java.lang.Class oj_param0, openjava.mop.MetaInfo oj_param1 )
{
super( oj_param0, oj_param1 );
}
}
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