| /******************************************************************************* |
| * Copyright (c) 2006 Oracle Corporation. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * Gerry Kessler/Oracle - initial API and implementation |
| * |
| ********************************************************************************/ |
| package org.eclipse.jst.jsf.taglibprocessing.attributevalues; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.jst.jsf.metadataprocessors.features.IDefaultValue; |
| import org.eclipse.jst.jsf.metadataprocessors.features.IPossibleValues; |
| import org.eclipse.jst.jsf.metadataprocessors.features.IValidValues; |
| import org.eclipse.jst.jsf.metadataprocessors.features.PossibleValue; |
| |
| /** |
| * Meta-data processing type representing a boolean attribute value runtime type |
| * that implements IPossibleValues, IValidValues, IDefaultValue, IValidELValues |
| * |
| * <p><b>Provisional API - subject to change</b></p> |
| * @author Gerry Kessler - Oracle |
| */ |
| public class BooleanType extends EnumerationType implements IValidValues, IPossibleValues, IDefaultValue{ |
| private static final String TRUE_VAL = "true"; //$NON-NLS-1$ |
| private static final String FALSE_VAL = "false"; //$NON-NLS-1$ |
| |
| private static final String BOOLTYPE_VALIDATION_MSG = Messages.BooleanType_invalid_values; |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.jsf.taglibprocessing.attributevalues.EnumerationType#getReturnType() |
| */ |
| protected String getReturnType(){ return "boolean";} //$NON-NLS-1$ |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.jsf.metadataprocessors.features.IPossibleValues#getPossibleValues() |
| */ |
| public List getPossibleValues() { |
| String def = getDefaultValue(); |
| List vals = new ArrayList(); |
| vals.add(new PossibleValue(TRUE_VAL, TRUE_VAL, def != null && def.equals(TRUE_VAL) )); |
| vals.add(new PossibleValue(FALSE_VAL, FALSE_VAL, def != null && def.equals(FALSE_VAL) )); |
| return vals; |
| } |
| |
| /** |
| * Type coercion according to JSP 2.0 spec: JSP.1.14.2.1 Conversions from String values |
| * Although not completely faithful to spec, we will validate values as either 'true' or 'false' |
| * @see org.eclipse.jst.jsf.metadataprocessors.features.IValidValues#isValidValue(java.lang.String) |
| **/ |
| public boolean isValidValue(String value) { |
| if(TRUE_VAL.equalsIgnoreCase(value) || FALSE_VAL.equalsIgnoreCase(value)) { |
| return true; |
| } |
| addNewValidationMessage(BOOLTYPE_VALIDATION_MSG); |
| return false; |
| } |
| |
| } |