To build:
    This is a standalone (Java SE) application for JPA.
    In your environment, set
    JAVAX_PERSISTENCE=path_to/javax.persistence.jar

    The META-INF/persistence.xml file contains information that JPA will
    use for the database connection. Edit it for the appropriate values for
    your database. That file is based on the eclipselink JPA reference
    implementation; it will need other changes for Hibernate or other
    JPA implementations (chaging the provider class and eclipselink
    property names).

    Although the example doesn't use JDBC directly, you will need the
    appropriate JDBC driver to compile the application (so that the
    driver gets set into the classpath). In your environment, set
    JDBC_JAR=/path_to/ojdbc6.jar
    (or whichever driver you are using).

To run:
    Use the schema file in StockCreateJDBC to create the necessary schema
    in the database. 

    Running a Java SE program with JPA requires that the JPA classes be
    "enhanced". Eclipselink does this at run time using the javaagent
    argument. Other implementations may require that the jar file be
    pre-processed; check your provider documentation to see if that is
    required.

    java <jvmargs> -javaagent:${ECLIPSELINK_JAR} -jar jars/StockCreateJPA.jar \
        nThreads nStocks startDate endDate nTransactions reuseEM reuseTX

    nThreads -- Number of threads to use for parallel insert
    nStocks -- Number of stocks to insert
    startDate -- Starting date of range
    endDate -- Ending date of range
    nTransactions -- Number of stocks per transaction
    reuseEM -- If true, don't create a new EM for each transaction
    reuseTX -- If true, don't create a new transaction

Notes on Examples:

Example 11-2:
    java -javaagent:${ECLIPSELINK_JAR} -jar jars/StockCreateJPA.jar \
        1 128 1/1/13 12/31/13 128 true true

    To explore changes in statement caching and batch sizes, change the
    values in persistence.xml