File Type:jpr jpx jws
jpr - JDeveloper Project Filejws - JDeveloper Workspace File
jpx - The.jpx file contains configuration information that JDeveloper uses in the design time to allow you to create the data model project.
make vs rebuild
"make" JDeveloper should detect that the .java file doesn\'t need recompiling and skip it;"rebuild" JDeveloper should recompile everything whether or not it needs it.
Embedded OC4J Server
Oracle Application Server Containers for J2EE (OC4J) is a program that allows J2EE applications to run on the Oracle Application Server. OC4J offers a lightweight, easy to use, high performance J2EE environment. The J2EE facilities provided by OC4J include an Enterprise JavaBeans (EJB) container, a Java Servlet container, and a JavaServer Pages translator and runtime (OJSP).
By default, your server-side Java applications run in a version of OC4J that is embedded in JDeveloper. Use this server to debug, test, and optimize your J2EE applications locally, prior to deploying them to a target application server.
OC4J : how to set java option in embedded OC4J
Project Properties->Run/Debug->Launch Setting
Include and Exclude
如果Project里边文件非常多，JDev往往会非常慢，这时可以使用Project Properties ->Project Content中，通过Include and Exclude来设置项目中显示什么，不显示什么。设置后，文件加载的速度明显会快很多。
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