svn commit: r532028 - /incubator/wicket/trunk/jdk-1.4/wicket/src/main/java/org/apache/wicket/validation/Validatable.java

[iv...@apache.org]

Author: ivaynberg
Date: Tue Apr 24 10:54:12 2007
New Revision: 532028

URL: http://svn.apache.org/viewvc?view=rev&rev=532028
Log:
added validatable to make validating outside of wicket easier

Added:
    incubator/wicket/trunk/jdk-1.4/wicket/src/main/java/org/apache/wicket/validation/Validatable.java

Added: incubator/wicket/trunk/jdk-1.4/wicket/src/main/java/org/apache/wicket/validation/Validatable.java
URL: http://svn.apache.org/viewvc/incubator/wicket/trunk/jdk-1.4/wicket/src/main/java/org/apache/wicket/validation/Validatable.java?view=auto&rev=532028
==============================================================================
--- incubator/wicket/trunk/jdk-1.4/wicket/src/main/java/org/apache/wicket/validation/Validatable.java (added)
+++ incubator/wicket/trunk/jdk-1.4/wicket/src/main/java/org/apache/wicket/validation/Validatable.java Tue Apr 24 10:54:12 2007
@@ -0,0 +1,115 @@
+/*
+ * 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.wicket.validation;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.List;
+
+/**
+ * This implementation of {@link IValidatable} is meant to be used outside of
+ * wicket. It allows other parts of the application to utilize
+ * {@link IValidator}s to validate values.
+ * 
+ * Example: <code>
+ * class WebService {
+ *   public void addUser(String firstName, String lastName) {
+ *     Validatable standin=new Validatable();
+ *     standin.setValue(firstName);
+ *     new FirstNameValidator().validate(standin);
+ *     standing.setValue(lastName);
+ *     new LastNameValidator().validate(standin);
+ *     if (!standin.isValid()) {
+ *       // roll your own ValidationException
+ *       throw new ValidationException(standin.getErrors());
+ *     } else {
+ *         // add user here
+ *     }
+ *   }
+ * }
+ * </code>
+ * 
+ * @author Igor Vaynberg (ivaynberg)
+ */
+public class Validatable implements IValidatable
+{
+
+	private Object value;
+	private ArrayList errors;
+
+	/**
+	 * Constructor
+	 */
+	public Validatable()
+	{
+	}
+
+	/**
+	 * Sets the value object that will be returned by {@link #getValue()}
+	 * 
+	 * @param value
+	 */
+	public void setValue(Object value)
+	{
+		this.value = value;
+	}
+
+	/**
+	 * @see org.apache.wicket.validation.IValidatable#getValue()
+	 */
+	public Object getValue()
+	{
+		return value;
+	}
+
+	/**
+	 * @see org.apache.wicket.validation.IValidatable#error(org.apache.wicket.validation.IValidationError)
+	 */
+	public void error(IValidationError error)
+	{
+		if (errors == null)
+		{
+			errors = new ArrayList();
+		}
+		errors.add(error);
+	}
+
+	/**
+	 * @return umodifiable list of any errors reported against this validatable
+	 *         instance
+	 */
+	public List getErrors()
+	{
+		if (errors == null)
+		{
+			return Collections.EMPTY_LIST;
+		}
+		else
+		{
+			return Collections.unmodifiableList(errors);
+		}
+	}
+
+	/**
+	 * @see org.apache.wicket.validation.IValidatable#isValid()
+	 */
+	public boolean isValid()
+	{
+		return errors == null;
+	}
+
+}