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Diffstat (limited to 'das-java/tags/1.0-incubating-beta1/rdb/src/test/java/org/apache/tuscany/das/rdb/test/util/PrintPropertiesOfDataObject.java')
| -rw-r--r-- | das-java/tags/1.0-incubating-beta1/rdb/src/test/java/org/apache/tuscany/das/rdb/test/util/PrintPropertiesOfDataObject.java | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/das-java/tags/1.0-incubating-beta1/rdb/src/test/java/org/apache/tuscany/das/rdb/test/util/PrintPropertiesOfDataObject.java b/das-java/tags/1.0-incubating-beta1/rdb/src/test/java/org/apache/tuscany/das/rdb/test/util/PrintPropertiesOfDataObject.java new file mode 100644 index 0000000000..897e8d39b3 --- /dev/null +++ b/das-java/tags/1.0-incubating-beta1/rdb/src/test/java/org/apache/tuscany/das/rdb/test/util/PrintPropertiesOfDataObject.java @@ -0,0 +1,134 @@ +/**
+ *
+ * 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.tuscany.das.rdb.test.util;
+
+import java.util.List;
+
+import commonj.sdo.DataObject;
+import commonj.sdo.Property;
+import commonj.sdo.Type;
+
+/**
+ * Demonstrates iterating through, and inspecting properites of a DataObject. This
+ * sample shows listing properties of a DataObject, determining if the properties are
+ * set and whether they are simple properties or represent DataObjects <br>
+ * <br>
+ * This sample is from the <a href="http://incubator.apache.org/tuscany"
+ * target="_blank"> Apache Tuscany</a> project. It was written to help users
+ * understand and experiment with SDO. It is based upon code snippets contained
+ * within, and is meant for use with, and reference to the <a
+ * href=http://osoa.org/download/attachments/36/Java-SDO-Spec-v2.1.0-FINAL.pdf?version=1"
+ * target="_bank">SDO Specification</a>. This specific examples was based upon code
+ * snippets in the section titled 'Property Indexes'. <br>
+ * <b>Usage:</b> <br>
+ * This sample can easily be run from within Eclipse as a Java Application if Tuscany or
+ * the sample-sdo project is imported into Eclipse as an existing project.
+ * <br><br>
+ * If executing as a standalone application please do the following:
+ * <br>
+ * <UL>
+ * <LI>Include the following jar files on your classpath :
+ * <UL>
+ * <LI>SDO API and Tuscany Implementation
+ * <UL>
+ * <LI>sdo-api-{version}.jar - SDO API
+ * <LI>tuscany-sdo-impl-{version}.jar - Tuscany SDO implementation
+ * </UL>
+ * </LI>
+ * <LI>EMF dependencies.
+ * <UL>
+ * <LI>emf-common-{version}.jar - some common framework utility and base classes
+ * <LI>emf-ecore-{version}.jar - the EMF core runtime implementation classes (the Ecore metamodel)
+ * <LI>emf-ecore-change-{version}.jar - the EMF change recorder and framework
+ * <LI>emf-ecore-xmi-{version}.jar - EMF's default XML (and XMI) serializer and loader
+ * <LI>xsd-{version}.jar - the XML Schema model
+ * </UL>
+ * </LI>
+ * </UL>
+ *
+ * These jar files can be obtained by downloading and unpacking a <a href="http://cwiki.apache.org/TUSCANY/sdo-downloads.html" target="_blank">Tuscany binary distribution</a> </LI>
+ * <LI>Execute: <br>
+ * java org.apache.tuscany.samples.sdo.specCodeSnippets.PrintPropertiesOfDataObject</LI>
+ * </UL>
+ */
+
+public class PrintPropertiesOfDataObject {
+
+ /**
+ * Calls recursive method to inspect and print properties of a DataObject.
+ *
+ * @param DataObject.
+ * The DataObject to print the properties of
+ */
+ public static void printDataObjectProperties(DataObject myDo) throws Exception {
+ System.out.println("Recursivly inspecting and printing properties of DataObject");
+ printAndInspectDataObject(" ", myDo);
+ }
+
+ /**
+ * Recursivly inspects and prints DataObject. This method will list all set
+ * properties
+ *
+ * @param buffer.
+ * Blank string to help with formating
+ * @param myDo.
+ * DataObject to recursivly inspect and print the properties of.
+ * @throws Exception
+ */
+ private static void printAndInspectDataObject(String buffer, DataObject dataObject) throws Exception {
+ for (int i = 0; i < dataObject.getInstanceProperties().size(); i++) {
+ Property p = (Property) dataObject.getInstanceProperties().get(i);
+ // just print out the name, type and string value of the property
+ Type type = p.getType();
+ System.out.print(buffer + " " + p.getName() + ",type=" + type.getName());
+ if (dataObject.isSet(p)) {
+ // see if this represents a simple property or if the type is also a
+ // datatype
+ if (type.isDataType()) {
+ System.out.println(", simple type : " + dataObject.get(i));
+ } else {
+
+ // check to see if the property has many values
+ if (p.isMany()) {
+ System.out.println(buffer + ", many valued with list of DataObjects : ");
+ List dataObjects = dataObject.getList(p);
+ for (int x = 0; x < dataObjects.size(); x++) {
+ if (p.isContainment()) {
+ printAndInspectDataObject(buffer + " ", (DataObject) dataObjects.get(x));
+ System.out.println();
+ }
+ }
+
+ } else {
+
+ System.out.println(buffer + ", data object : ");
+ DataObject newDataObject = dataObject.getDataObject(p);
+ printAndInspectDataObject(buffer + " ", newDataObject);
+ System.out.println("");
+ }
+ }
+ } else {
+ System.out.println(buffer + ", is not set");
+ }
+ }
+
+ }
+}
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