Package org.apache.cayenne.modeler.undo

Source Code of org.apache.cayenne.modeler.undo.CreateAttributeUndoableEdit

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*  "License"); you may not use this file except in compliance
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package org.apache.cayenne.modeler.undo;

import javax.swing.undo.CannotRedoException;
import javax.swing.undo.CannotUndoException;

import org.apache.cayenne.access.DataDomain;
import org.apache.cayenne.map.DataMap;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.DbEntity;
import org.apache.cayenne.map.ObjAttribute;
import org.apache.cayenne.map.ObjEntity;
import org.apache.cayenne.modeler.action.CreateAttributeAction;
import org.apache.cayenne.modeler.action.RemoveAttributeAction;
import org.apache.cayenne.modeler.event.EntityDisplayEvent;

public class CreateAttributeUndoableEdit extends CayenneUndoableEdit {

  @Override
  public boolean canRedo() {
    return true;
  }

 
  @Override
  public String getPresentationName() {
    return "Create Attribute";
  }

  private ObjEntity objEntity;
  private ObjAttribute objAttr;

  private DataDomain domain;
  private DataMap dataMap;

  private DbEntity dbEntity;
  private DbAttribute dbAttr;

  @Override
  public void redo() throws CannotRedoException {   
    CreateAttributeAction action = (CreateAttributeAction) actionManager
        .getAction(CreateAttributeAction.getActionName());

    if (objEntity != null) {
      action.createObjAttribute(domain, dataMap, objEntity, objAttr);
    }

    if (dbEntity != null) {
      action.createDbAttribute(domain, dataMap, dbEntity, dbAttr);
    }
  }

  @Override
  public void undo() throws CannotUndoException {   
    RemoveAttributeAction action = (RemoveAttributeAction) actionManager
        .getAction(RemoveAttributeAction.getActionName());

    if (objEntity != null) {
      action.removeObjAttributes(objEntity,
          new ObjAttribute[] { objAttr });
     
      controller.fireObjEntityDisplayEvent(new EntityDisplayEvent(
                  this,
                  objEntity,
                  dataMap,
                  domain));
    }

    if (dbEntity != null) {
      action.removeDbAttributes(dataMap, dbEntity,
          new DbAttribute[] { dbAttr });
     
      controller.fireDbEntityDisplayEvent(new EntityDisplayEvent(
                  this,
                  dbEntity,
                  dataMap,
                  domain));
    }
  }

  public CreateAttributeUndoableEdit(DataDomain domain, DataMap map,
      ObjEntity objEntity, ObjAttribute attr) {
    this.domain = domain;
    this.dataMap = map;
    this.objEntity = objEntity;
    this.objAttr = attr;
  }

  public CreateAttributeUndoableEdit(DataDomain domain, DataMap map,
      DbEntity dbEntity, DbAttribute attr) {
    this.domain = domain;
    this.dataMap = map;
    this.dbEntity = dbEntity;
    this.dbAttr = attr;
  }
}
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