``` ############################################################################### ## Rapid Data Objects ############################################################################### ``` Rapid Data Objects (RDO) is a very lightweight ORM that requires NO-CONFIGURATION. RDO is compatible with Java 6 and above. ``` ------------------------------------------------------------------------------- ---- Prerequisites for Development ------------------------------------------------------------------------------- ``` Before building with Ant ensure the following environment variables are set: - WORK_HOME ...... the directory preceding the Mercurial depot - STAGING_HOME ... a temporary directory for staging files - HSQLDB_HOME .... installation directory of HSQLDB (to run end-to-end tests) Optionally you can set the following environment variables: - ANT_HOME ....... required by ANT - JAVA_HOME ...... pointing to your Java 7 JDK directory