If you're interested in using just the RETS client library that we're developing as part of CART, you can download it here:

• Binary distributions: rets-client-1.0.2.tar.gz, rets-client-1.0.2.zip.
• Source distributions: rets-client-1.0.2-src.tar.gz, rets-client-1.0.2-src.zip.

This library uses several external packages which you will need:

• Jakarta Commons HttpClient
  Used for the HTTP protocol. This code is currently developed against version 2.0.
• Jakarta Commons Lang
  Includes various java utility classes.
• Jakarta Commons Logging
  Used for flexible logging to log4j or java 1.4 logging. Required by commons-httpclient so we use it as well.
• jdom
  An XML document API, less cumbersome than the W3C's DOM.
• log4j
  A logging API. With java 1.4 you don't strictly need this, as commons-logging will pick up the java 1.4 logging classes instead. Cart does use log4j specifically.
• SAX
  You will need a JAXP-compliant SAX parser. Cart uses Xerces, but Java 1.4 ships with a JAXP SAX parser that will work just fine.

Using the library

First off, the javadocs are right here.

Now, here's a brief sample. More documentation is coming.

import org.realtors.rets.client.RetsSession;
import org.realtors.rets.client.SearchRequest;
import org.realtors.rets.client.SearchResult;

class RetsTest {
    public static void main (String args) {
        RetsSession session = new RetsSession(
            "http://demo.crt.realtors.org:6103/login");
        // implicitly calls getMetadata()
        session.login("Username", "Password");

        SearchRequest req = new SearchRequest(
            "Property", "ResidentialProperty", "(LP=300000-)");
        SearchResult res = session.search(req);

        session.logout();
    }
}

Status

The following transactions are supported: Login, GetMetadata, Search, GetObject (one object only, no multiple object requests), Logout. Update will be supported in a future release.