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How to fetch FetchType.LAZY associations with JPA and Hibernate in a Spring Controller
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You will have to make an explicit call on the lazy collection in order to initialize it (common practice is to call .size() for this purpose). In Hibernate there is a dedicated method for this (Hibernate.initialize()), but JPA has no equivalent of that. Of course you will have to make sure...
How do negative margins in CSS work and why is (margin-top:-5 != margin-bottom:5)?
...ent: "";
}
.parent:before {
top: 0;
bottom: 0;
left: 50%;
border-left: dashed 1px #ccc;
}
.parent:after {
left: 0;
right: 0;
top: 50%;
border-top: dashed 1px #ccc;
}
.child {
width: 200px;
height: 200px;
background: rgba(200, 198, 133, .5);
}
ul {
...
Remove Identity from a column in a table
... you want to do this without adding and populating a new column, without reordering the columns, and with almost no downtime because no data is changing on the table, let's do some magic with partitioning functionality (but since no partitions are used you don't need Enterprise edition):
Remove al...
How can I set up an editor to work with Git on Windows?
...oesn't let you open other files, and that you must close when done with in order for git to know you're done editing. Works the same for commit messages.
– ErikE
Oct 21 '15 at 22:59
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Getting vertical gridlines to appear in line plot in matplotlib
...‘x’, or ‘y’ to control which set of
gridlines are drawn.
So in order to show grid lines for both the x axis and y axis, we can use the the following code:
ax = plt.gca()
ax.grid(which='major', axis='both', linestyle='--')
This method gives us finer control over what to show for grid l...
What are five things you hate about your favorite language? [closed]
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you forgot about functions with parameter order changing randomly
– dusoft
Oct 9 '09 at 20:43
39
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What's is the difference between train, validation and test set, in neural networks?
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Testing Set: this data set is used only for testing the final solution in order to confirm the actual predictive power of the network.
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How to get JavaScript caller function line number? How to get JavaScript caller source URL?
...or' exception and not the 'errorHandler' exception wich you really want in order to make debugging easy. Throwing your own exceptions is great but on large projects locating them can be quite an issue, especially if they have similar messages. So, what you can do is to pass a reference to an actual...
What is a StackOverflowError?
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is implemented correctly, you can increase the stack’s size, in
order to allow a larger number of invocations. Depending on the Java
Virtual Machine (JVM) installed, the default thread stack size may
equal to either 512KB, or 1MB. You can increase the thread stack
size using t...
Undo a merge by pull request?
...it). This should not hinder you from resetting - the commits will not be reordered by themselves, if you did not a rebase afterwards.
– Paŭlo Ebermann
Jun 26 '11 at 1:59
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