JavaPerformanceTuning/impl/README at master · GKPython/JavaPerformanceTuning · GitHub

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These classes provide various implementations of the StockPrice API.

To compile these classes, you must have a JPA implementation. In your

environment, please set JAVAX_PERSISTENCE to the path to the jar file

containing the JPA API classes, e.g.

export JAVA_PERSISTENCE=/path_to/javax.persistence.jar

For examples that require Eclipselink-specific functionality, set

ECLIPSELINK_JAR to the path of the eclipselink implementation, e.g.

export ECLIPSELINK_JAR=/path_to/eclipselink.jar

There are several implementations of the stock price API, discussed mostly

in Chapter 11, as the implementation differences affect JPA. The choice of

those implementations is selected via -Dimpl value passed to the ant

comandline:

-Dimpl=LazyLazyImpl (both relationships are annotated lazy)

-Dimpl=EagerLazyImpl (the OneToMany stock->options relationship is eager)

-Dimpl=EagerEagerImpl (both relationships are eager)

-Dimpl=LazyEagerImpl (the ManyToOne options->stock relationship is eager)

For tests with the mock entity manager, use LazyLazyImpl, which is the

default.

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