Examples of net.sf.rej.gui.Undoable

net.sf.rej.gui.Undoable
Interface for all actions that can be undone(UNDOed). The basic idea is that an action knows how to execute itself, and how to undo that execution. The contract of Undoable demands also that { Undoable.execute(); Undoable.undo(); } can be called any number of times. Meaning from the user interface point of view that the user can trigger the action, undo it, redo it, undo it, redo it, undo it as many times as the user wishes. However execute won't be called twice without calling undo in between and undo won't be called twice without calling execute in between. @author KOIVUSAM

        this.actions.add(action);
    }


    public void execute() {
        for (int i = 0; i < this.actions.size(); i++) {
            Undoable action = this.actions.get(i);
            action.execute();
        }
    }

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        }
    }


    public void undo() {
        for (int i = this.actions.size() - 1; i >= 0; i--) {
            Undoable action = this.actions.get(i);
            action.undo();
        }
    }

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  @Override
  public void processAttribute(IterationContext ic, Attribute attr) {
    if (attr instanceof LineNumberTableAttribute) {
      LineNumberTableAttribute lnAttr = (LineNumberTableAttribute) attr;
      Attributes attrs = ic.getCodeAttribute().getAttributes();
      Undoable u = new RemoveAttributeAction(attrs, lnAttr);
      if (batchMode) {
        u.execute();
      } else {
        SystemFacade.getInstance().performAction(u, ic.getFilename());
      }
    }
  }

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  @Override
  public void processAttribute(IterationContext ic, Attribute attr) {
    if (attr instanceof LocalVariableTableAttribute) {
      LocalVariableTableAttribute lvAttr = (LocalVariableTableAttribute) attr;
      Attributes attrs = ic.getCodeAttribute().getAttributes();
      Undoable u = new RemoveAttributeAction(attrs, lvAttr);
      if (this.batchMode) {
        u.execute();
      } else {
        SystemFacade.getInstance().performAction(u, ic.getFilename());
      }
    }
  }

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      List<Transferrable> transferrables = (List) data;
      for (Transferrable transferrable : transferrables) {
        if (transferrable instanceof TransferrableField) {
          TransferrableField field = (TransferrableField) transferrable;


          Undoable insertFieldAction = new InsertFieldAction(
              this.classDef.getClassFile(), field.getFieldName(),
              field.getDescriptor(), new AccessFlags(field
                  .getAccessFlags()));
          ga.add(insertFieldAction);
        } else if (transferrable instanceof TransferrableMethod) {

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    // field should be refactored?    
    String className = ic.getCf().getFullClassName();
    String newFieldName = this.advisor.newFieldNameFor(className, field.getName(), field.getDescriptor());
    if (newFieldName != null) {
      Undoable u = new RenameFieldAction(ic.getCf().getPool(), field, newFieldName);
      if (this.batchMode) {
        u.execute();
      } else {
        SystemFacade.getInstance().performAction(u, ic.getFilename());          
      }
    }
  }

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    // method should be refactored?
    String className = ic.getCf().getFullClassName();
    String newMethodName = this.advisor.newMethodNameFor(className, method.getName(), method.getDescriptor());
    if (newMethodName != null) {
      Undoable u = new RenameMethodAction(ic.getCf().getPool(), method, newMethodName);
      if (this.batchMode) {
        u.execute();
      } else {
        SystemFacade.getInstance().performAction(u, ic.getFilename());          
      }
    }
  }

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  public void postProcessFile(IterationContext ic) {
    ClassFile cf = ic.getCf();
    String oldClassName = this.oldClassNames.get(ic.getCf().getFullClassName());
    if (oldClassName != null) {
      String newFileName = getNewFileName(ic.getFilename(), oldClassName, cf.getFullClassName());
      Undoable u = new RenameFileAction(ic.getProject(), ic.getFilename(), newFileName, ic.getCf());
      if (this.batchMode) {
        FileSet fs = ic.getProject().getFileSet();
        fs.removeFile(ic.getFilename());
        fs.addFile(newFileName);
      } else {

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      }
    }
    
    if (match) {
      desc.setParamList(newParams);
      Undoable u = new ModifyDescriptor(ic.getCf().getPool(), desc, descEnabled);
      if (this.batchMode) {
        u.execute();
      } else {
        SystemFacade.getInstance().performAction(u, ic.getFilename());
      }
    }
  }

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      ClassInfo ci = (ClassInfo)cpi;
      JavaType jt = new JavaType(ci.getName());
      String newClassName = this.advisor.newClassNameFor(jt.getType());
      if(newClassName != null) {
        this.oldClassNames.put(newClassName, jt.getType());
        Undoable u = new ModifyClassInfoAction(ic.getCf().getPool(), ci, newClassName + jt.getDimensions());
        if (this.batchMode) {
          u.execute();
        } else {
          SystemFacade.getInstance().performAction(u, ic.getFilename());
        }
      }
    } if(cpi.getType() == ConstantPoolInfo.NAME_AND_TYPE) {
      NameAndTypeInfo nati = (NameAndTypeInfo)cpi;
      Descriptor desc = nati.getDescriptor();
      JavaType ret = desc.getReturn();
      boolean match = false;
      String newClassName = this.advisor.newClassNameFor(ret.getType());
      if (newClassName != null) {
        this.oldClassNames.put(newClassName, ret.getType());
        match = true;
        desc.setReturn(new JavaType(newClassName, ret.getDimensionCount()));
      }
      
      List params = desc.getParamList();
      List<JavaType> newParams = new ArrayList<JavaType>();
      for (int i=0; i < params.size(); i++) {
        JavaType param = (JavaType)params.get(i);
        newClassName = this.advisor.newClassNameFor(param.getType());
        if (newClassName != null) {
          this.oldClassNames.put(newClassName, param.getType());
          match = true;
          newParams.add(new JavaType(newClassName, param.getDimensionCount()));
        } else {
          newParams.add(param);
        }
      }
      
      if (match) {
        desc.setParamList(newParams);
        Undoable u = new ModifyNameAndTypeInfoAction(ic.getCf().getPool(), nati, desc);
        if (this.batchMode) {
          u.execute();
        } else {
          SystemFacade.getInstance().performAction(u, ic.getFilename());
        }
      }
    } if(cpi.getType() == ConstantPoolInfo.FIELD_REF) {
      RefInfo ri = (RefInfo)cpi;
      String className = ri.getClassName();
      String newFieldName = this.advisor.newFieldNameFor(className, ri.getTargetName(), ri.getDescriptor());
      if (newFieldName != null) {
        NameAndTypeInfo nati = ri.getNameAndTypeInfo();
        
        Undoable u = new ModifyNameAndTypeInfoAction(ic.getCf().getPool(), nati, newFieldName);
        if (this.batchMode) {
          u.execute();
        } else {
          SystemFacade.getInstance().performAction(u, ic.getFilename());          
        }
      }
    } else if(cpi.getType() == ConstantPoolInfo.METHOD_REF || cpi.getType() == ConstantPoolInfo.INTERFACE_METHOD_REF) {
      RefInfo ri = (RefInfo)cpi;
      String className = ri.getClassName();
      String newMethodName = this.advisor.newMethodNameFor(className, ri.getTargetName(), ri.getDescriptor());
      if (newMethodName != null) {
        NameAndTypeInfo nati = ri.getNameAndTypeInfo();
        Undoable u = new ModifyNameAndTypeInfoAction(ic.getCf().getPool(), nati, newMethodName);
        if (this.batchMode) {
          u.execute();
        } else {
          SystemFacade.getInstance().performAction(u, ic.getFilename());          
        }
      }
    }

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Related Classes of net.sf.rej.gui.Undoable

net.sf.rej.gui.action.GroupAction

net.sf.rej.gui.editor.iteration.RefactoringIterator

net.sf.rej.gui.tab.EditorTab

net.sf.rej.obfuscation.LineNumberStripper

net.sf.rej.obfuscation.LocalVarStripper

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