public static void main(String[] args) {
// the name of the database
String databaseName = "apriori";
// the name and password of the administrator of the database
String administratorName = SampleProperties.administratorName;
String administratorPassword = SampleProperties.administratorPassword;
// create a session
XhiveDriverIf driver = XhiveDriverFactory.getDriver();
driver.init(1024);
XhiveSessionIf session = driver.createSession();
try {
// open a connection to the database
session.connect(administratorName, administratorPassword, databaseName);
// create a Reporter for some nice output
Reporter rep = new Reporter();
// begin the transaction
session.begin();
// get a handle to the database
XhiveDatabaseIf united_nations_db = session.getDatabase();
// get a handle to the root library
XhiveLibraryIf rootLibrary = united_nations_db.getRoot();
// get/create the "UN Charter" library
XhiveLibraryIf charterLib =
DataLoader.createLibrary(united_nations_db, rootLibrary, "UN Charter", session);
// load the sample documents
DataLoader.storeDocuments(united_nations_db, charterLib, session);
// retrieve the documents thru DOM operations
System.out.println("\n#Retrieving documents thru DOM operations...");
// count the number of children of the "UN Charter" library
int nrChildren = 0;
if (charterLib.hasChildNodes()) {
Node n = charterLib.getFirstChild();
while (n != null) {
nrChildren++;
n = n.getNextSibling();
}
}
System.out.println("library \"UN Charter\" has " + nrChildren + " children");
// retrieve the documents by ID
System.out.println("\n#Retrieving documents by ID...");
int anId = 10;
Node child = charterLib.get(anId);
System.out.println(
"document with ID = "
+ anId
+ " in \"UN Charter\" has name: "
+ ((XhiveLibraryChildIf) child).getName());
// retrieve the documents by name
System.out.println("\n#Retrieving documents by name...");
String documentName = "UN Charter - Chapter 2";
Document docRetrievedByName = (Document) charterLib.get(documentName);
System.out.println(
"the ID of the document with name \""
+ documentName
+ "\" is: "
+ ((XhiveLibraryChildIf) docRetrievedByName).getId());
// retrieve the name of the document by executeFullPathXPointerQuery (FPXPQ)
System.out.println("\n#Retrieving documents by executeFullPathXPointerQuery...");
Document docRetrievedByFPXPQ =
(Document) rootLibrary.getByPath("/UN Charter/UN Charter - Chapter 2");
System.out.println(docRetrievedByFPXPQ.toString());
// use FPXPQ with a relative path
System.out.println(
"\n#Retrieving documents by executeFullPathXPointerQuery - using relative path...");
// create a new sub library of UN Charter
XhiveLibraryIf newLib = charterLib.createLibrary(XhiveLibraryIf.LOCK_WITH_PARENT);
newLib.setName("sub library of UN Charter");
charterLib.appendChild(newLib);
// execute the FullPathXPointerQuery relative to the new sub library
docRetrievedByFPXPQ = (Document) newLib.getByPath("../UN Charter - Chapter 3");
System.out.println(docRetrievedByFPXPQ.toString());
// and delete the sub library
charterLib.removeChild(newLib);
session.commit();
} catch (Exception e) {
System.out.println("RetrieveDocuments sample failed: ");
e.printStackTrace();
} finally {
// disconnect and remove the session
if (session.isOpen()) {
session.rollback();
}
if (session.isConnected()) {
session.disconnect();
}
driver.close();
}
}
