139 lines
3.9 KiB
Java
139 lines
3.9 KiB
Java
//This file is part of SECONDO.
|
|
|
|
//Copyright (C) 2004, University in Hagen, Department of Computer Science,
|
|
//Database Systems for New Applications.
|
|
|
|
//SECONDO is free software; you can redistribute it and/or modify
|
|
//it under the terms of the GNU General Public License as published by
|
|
//the Free Software Foundation; either version 2 of the License, or
|
|
//(at your option) any later version.
|
|
|
|
//SECONDO is distributed in the hope that it will be useful,
|
|
//but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
//MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
//GNU General Public License for more details.
|
|
|
|
//You should have received a copy of the GNU General Public License
|
|
//along with SECONDO; if not, write to the Free Software
|
|
//Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
package viewer.queryconstruction;
|
|
|
|
import java.awt.Graphics;
|
|
import java.util.Arrays;
|
|
import javax.swing.BorderFactory;
|
|
|
|
/**
|
|
* This class is respresenting the operations in the query
|
|
* and the operation objects in the OperationsPane.
|
|
*/
|
|
public class Operation extends ObjectView {
|
|
|
|
//name of the operator shown in the OperationsPane
|
|
private String name;
|
|
//objects, the operator is applicable to
|
|
private String[] objects;
|
|
//parameters, the operator needs
|
|
private String[] parameter;
|
|
//result type after using the operator
|
|
private String result;
|
|
//siganture of the operator
|
|
private String signature;
|
|
//object component belonging to the operation
|
|
private ObjectView view;
|
|
|
|
/**
|
|
* Constructor of an operation.
|
|
* @param name name of the operation
|
|
* @param objects type of objects which the operation needs
|
|
* @param signature signature of the operation
|
|
* @param parameter type of parameter which the operation needs
|
|
* @param result type of the result, when needed
|
|
*/
|
|
public Operation(String name, String[] objects, String signature,
|
|
String[] parameter, String result){
|
|
this.setOpaque(false);
|
|
this.name = name;
|
|
this.signature = signature;
|
|
this.result = result;
|
|
this.parameter = parameter;
|
|
this.objects = objects;
|
|
Arrays.sort(this.objects);
|
|
|
|
/* initialize the related object component */
|
|
view = new ObjectView(name, ObjectView.OPERATION);
|
|
view.setSignature(signature);
|
|
}
|
|
|
|
/**
|
|
* Returns a copy of this operation object.
|
|
* @return
|
|
*/
|
|
protected Operation copy() {
|
|
return new Operation(this.name, this.objects, this.signature,
|
|
this.parameter, this.result);
|
|
}
|
|
|
|
/**
|
|
* Returns the number of objects the operator needs.
|
|
* @return
|
|
*/
|
|
protected int countObjects() {
|
|
return objects.length;
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @return objects array
|
|
*/
|
|
protected String[] getObjects() {
|
|
return this.objects;
|
|
}
|
|
|
|
/**
|
|
* Returns the Name of the object, that is shown in the viewer.
|
|
* @return
|
|
*/
|
|
protected String getOperationName() {
|
|
return getView().getOnlyName();
|
|
}
|
|
|
|
/**
|
|
*
|
|
* @return parameter array
|
|
*/
|
|
protected String[] getParameter() {
|
|
return this.parameter;
|
|
}
|
|
|
|
/**
|
|
* Returns the type, the query has after using the operation.
|
|
* @return
|
|
*/
|
|
protected String getResultType() {
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Returns the signature of this operation.
|
|
* @return
|
|
*/
|
|
protected String getSignature() {
|
|
return signature;
|
|
}
|
|
|
|
/**
|
|
* Get the ObjectView object of this operation.
|
|
* @return
|
|
*/
|
|
protected ObjectView getView() {
|
|
return this.view;
|
|
}
|
|
|
|
public void paintComponent(Graphics g) {
|
|
this.setBorder(BorderFactory.createEtchedBorder());
|
|
String s = name;
|
|
|
|
g.drawString(s, 20, this.getSize().height/2 + 5);
|
|
}
|
|
}
|