| /* |
| * 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 org.apache.cocoon.forms.formmodel.algorithms; |
| |
| import java.util.Iterator; |
| |
| import org.apache.cocoon.forms.formmodel.CalculatedFieldAlgorithm; |
| import org.apache.cocoon.forms.util.DomHelper; |
| import org.outerj.expression.Expression; |
| import org.w3c.dom.Element; |
| |
| /** |
| * Builds a {@link org.apache.cocoon.forms.formmodel.algorithms.RepeatedFormula} |
| * algorithm. |
| * <p> |
| * The syntax is as follows : |
| * <code> |
| * <fd:value type="repeatedformula" [inital-result="..."] eval="..." [triggers="..."]/> |
| * </code> |
| * </p> |
| * @version $Id$ |
| */ |
| public class RepeatedFormulaBuilder extends SimpleFormulaBuilder { |
| |
| public CalculatedFieldAlgorithm build(Element algorithmElement) throws Exception { |
| RepeatedFormula ret = new RepeatedFormula(); |
| String formula = DomHelper.getAttribute(algorithmElement, "eval"); |
| setupExpression(formula,ret); |
| |
| // Remove formulaResult and formulaCurrent fom the list of triggers |
| Iterator iter = ret.getTriggerWidgets(); |
| while (iter.hasNext()) { |
| String wdg = (String) iter.next(); |
| if (wdg.equals("formulaResult") || wdg.equals("formulaCurrent")) { |
| iter.remove(); |
| } |
| } |
| |
| // Set the repeat-on attribute and add it to the list of triggers |
| String repeatOn = DomHelper.getAttribute(algorithmElement, "repeat-on"); |
| ret.setRepeatOn(repeatOn); |
| ret.addTrigger(repeatOn); |
| |
| String initialResult = DomHelper.getAttribute(algorithmElement, "initial-result"); |
| Expression expression = setupExpression(initialResult); |
| ret.setInitialResult(expression); |
| super.setup(algorithmElement, ret); |
| return ret; |
| } |
| } |