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What is the meaning of the CascadeType.ALL for a @ManyToOne JPA association
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As I explained in this article and in my book, High-Performance Java Persistence, you shouldn't use CascadeType.ALL on @ManyToOne since entity state transitions should propagate from Parent entities to Child ones, not the other way around.
The @ManyToOne side is always the Child associati...
How to force use of overflow menu on devices with menu button
...ives you like 6 different imports to choose from for Field choose this one java.lang.reflect.Field ;)
– Eugene van der Merwe
Dec 27 '13 at 9:59
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Naming convention for Scala constants?
...vention of pattern matching? e.g. val UpperConst = "UPPER_CONST" like part java-style okay or it should be val UpperConst = "UpperConst"
– nir
Aug 15 '16 at 22:49
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What is the fastest way to get the value of π?
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This is the method we used to calculate Pi in a java project in school. Just used a randomizer to come up with the x,y coordinates and the more 'darts' we threw the closer to Pi we came.
– Jeff Keslinke
Feb 2 '09 at 21:01
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Set time part of DateTime in ruby
...ticular part of a given date instance. For example the year. Any ideas? In Java I would just use the setter for year. But it doesn't work in Ruby :-(
– Robert Reiz
Jul 6 '13 at 12:27
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Check if a string contains a string in C++
...lace and many other staff.You can compare std::string to the string api in Java.PS:Also I do think contains is much more elegant than find to check if a string contains another string.
– Geng Jiawen
Jun 23 '14 at 8:01
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Can JavaScript connect with MySQL?
Can JavaScript connect with MySQL? If so, how?
18 Answers
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Understanding ibeacon distancing
...o match our data points. The algorithm we came up with is shown below as Java code.
Note that the term "accuracy" here is iOS speak for distance in meters. This formula isn't perfect, but it roughly approximates what iOS does.
protected static double calculateAccuracy(int txPower, double rssi...
A regex to match a substring that isn't followed by a certain other substring
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Not the answer you're looking for? Browse other questions tagged java regex clojure or ask your own question.
“ArrayAdapter requires the resource ID to be a TextView” xml problems
...is, R.layout.a_layout_file, R.id.a_text_view_within_layout, this.file) See javadoc for android.widget.ArrayAdapter
– Petr Gladkikh
Apr 18 '13 at 2:34
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