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What's the difference between @JoinColumn and mappedBy when using a JPA @OneToMany association
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The annotation @JoinColumn indicates that this entity is the owner of the relationship (that is: the corresponding table has a column with a foreign key to the referenced table), whereas the attribute mappedBy indicates that the entity in this...
How is Docker different from a virtual machine?
I keep rereading the Docker documentation to try to understand the difference between Docker and a full VM. How does it manage to provide a full filesystem, isolated networking environment, etc. without being as heavy?
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How does Hadoop process records split across block boundaries?
According to the Hadoop - The Definitive Guide
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Numpy first occurrence of value greater than existing value
I have a 1D array in numpy and I want to find the position of the index where a value exceeds the value in numpy array.
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Using logging in multiple modules
I have a small python project that has the following structure -
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Can a foreign key be NULL and/or duplicate?
Please clarify two things for me:
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PHP case-insensitive in_array function
Is it possible to do case-insensitive comparison when using the in_array function?
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Password hint font in Android
When an EditText is in password mode, it seems that the hint is shown in a different font (courrier?). How can I avoid this? I would like the hint to appear in the same font that when the EditText is not in password mode.
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Forced naming of parameters in Python
In Python you may have a function definition:
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ASP.NET: Session.SessionID changes between requests
Why does the property SessionID on the Session -object in an ASP.NET-page change between requests?
14 Answers
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