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How to call a stored procedure from Java and JPA
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JPA 2.1 now support Stored Procedure, read the Java doc here.
Example:
StoredProcedureQuery storedProcedure = em.createStoredProcedureQuery("sales_tax");
// set parameters
storedProcedure.registerStoredProcedureParameter("subtotal", Double.class, ParameterMode.IN);
stor...
PostgreSQL: Which Datatype should be used for Currency?
...ng from a database perspective alone. However, if you combine Postgresql + Java, it is NOT at all good (from my experience). Reading your comment, I used MONEY for most of my currency fields and now I get this Java exception : "SQLException occurred : org.postgresql.util.PSQLException: Bad value for...
Reading my own Jar's Manifest
...You can try checking whether getClass().getClassLoader() is an instance of java.net.URLClassLoader. Majority of Sun classloaders are, including AppletClassLoader.
You can then cast it and call findResource() which has been known - for applets, at least - to return the needed manifest directly:
URL...
What is the default access modifier in Java? [duplicate]
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From Java documentation
If a class has no modifier (the default, also known as package-private), it is visible only within its own package (packages are named groups of related classes — you will learn about them in a later ...
Is there a unique Android device ID?
...vices have a unique ID, and if so, what is a simple way to access it using Java?
52 Answers
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Is there any good dynamic SQL builder library in Java? [closed]
Anyone knows some good SQL builder library for Java like Squiggle (not maintained anymore it seems). Preferably, a project in active development.
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Any difference between First Class Function and High Order Function
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@AndreasRossberg Would Java 8 not be a valid answer to his question? Functions are not first-class citizens, but Java methods can receive functions (through functional interfaces), as described by you as "parameters that are functions are treated s...
How to store date/time and timestamps in UTC time zone with JPA and Hibernate
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To the best of my knowledge, you need to put your entire Java app in UTC timezone (so that Hibernate will store dates in UTC), and you'll need to convert to whatever timezone desired when you display stuff (at least we do it this way).
At startup, we do:
TimeZone.setDefault(TimeZ...
MFC OnEraseBkgnd浅析 - C/C++ - 清泛网 - 专注C/C++及内核技术
...kgnd()函数。该函数控制重绘图的背景刷新，默认将窗口用系统背景颜色填充，即用白色将窗口刷一遍。这就产生的严重的闪烁效果，有时看到屏幕白的一条一闪而过，非常不爽。如果将该函数返回值设为TRUE，即不进行背景重绘...
How to convert object array to string array in Java
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only on Java 1.6 and above
– newacct
Jul 5 '09 at 9:53
10
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