| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| |
| package javax.faces.component; |
| |
| import javax.el.ELException; |
| import javax.el.MethodExpression; |
| import javax.faces.component.StateHolder; |
| import javax.faces.context.FacesContext; |
| import javax.faces.el.EvaluationException; |
| import javax.faces.el.MethodBinding; |
| import javax.faces.el.MethodNotFoundException; |
| |
| /** |
| * Converts a MethodExpression to a MethodBinding. |
| * See JSF 1.2 spec section 5.8.4 |
| * |
| * ATTENTION: If you make changes to this class, treat |
| * org.apache.myfaces.el.convert.MethodExpressionToMethodBinding |
| * accordingly. |
| * |
| * @author Stan Silvert |
| * @see org.apache.myfaces.el.convert.MethodExpressionToMethodBinding |
| */ |
| class _MethodExpressionToMethodBinding extends MethodBinding implements StateHolder { |
| |
| private MethodExpression methodExpression; |
| |
| private boolean isTransient = false; |
| |
| public _MethodExpressionToMethodBinding() { |
| methodExpression = null; |
| } |
| |
| /** Creates a new instance of MethodExpressionToMethodBinding */ |
| public _MethodExpressionToMethodBinding(MethodExpression methodExpression) { |
| this.methodExpression = methodExpression; |
| } |
| |
| @Override |
| public String getExpressionString() |
| { |
| return methodExpression.getExpressionString(); |
| } |
| |
| public Class getType(FacesContext facesContext) |
| throws MethodNotFoundException { |
| |
| try { |
| return methodExpression.getMethodInfo(facesContext.getELContext()).getReturnType(); |
| } catch (javax.el.MethodNotFoundException e) { |
| throw new javax.faces.el.MethodNotFoundException(e); |
| } catch (ELException e) { |
| throw new EvaluationException(e); |
| } |
| } |
| |
| public Object invoke(FacesContext facesContext, Object[] params) |
| throws EvaluationException, MethodNotFoundException { |
| |
| try { |
| return methodExpression.invoke(facesContext.getELContext(), params); |
| } catch (javax.el.MethodNotFoundException e) { |
| throw new javax.faces.el.MethodNotFoundException(e); |
| } catch (ELException e) { |
| throw new EvaluationException(e); |
| } |
| } |
| |
| // -------- StateHolder methods ------------------------------------------- |
| |
| public void restoreState(FacesContext context, Object state) { |
| if(state != null) |
| methodExpression = (MethodExpression)state; |
| } |
| |
| public Object saveState(FacesContext context) { |
| if(!isTransient) |
| return methodExpression; |
| return null; |
| } |
| |
| public void setTransient(boolean newTransientValue) { |
| isTransient = newTransientValue; |
| } |
| |
| public boolean isTransient() { |
| return isTransient; |
| } |
| |
| } |