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When to use , tag files, composite components and/or custom components?
...rty. E.g. a component which represents a single java.util.Date property by 3 dependent <h:selectOneMenu> components, or a component which combines <p:fileUpload> and <p:imageCropper> into a single <my:uploadAndCropImage> referring a single custom com.example.Image entity as p...
How can bcrypt have built-in salts?
...tabase, a bcrypt "hash" might look something like this:
$2a$10$vI8aWBnW3fID.ZQ4/zo1G.q1lRps.9cGLcZEiGDMVr5yUP1KUOYTa
This is actually three fields, delimited by "$":
2a identifies the bcrypt algorithm version that was used.
10 is the cost factor; 210 iterations of the key derivation function...
What is the shortest way to pretty print a org.w3c.dom.Document to stdout?
What is the easiest way to pretty print (a.k.a. formatted) a org.w3c.dom.Document to stdout?
6 Answers
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GridLayout and Row/Column Span Woe
...t_gravity="fill_vertical"
android:layout_rowSpan="4"
android:text="3" />
<Button
android:layout_columnSpan="3"
android:layout_gravity="fill"
android:layout_rowSpan="2"
android:text="4" />
<Button
android:layout_columnSpan="3"
android:layout_gravity="fill...
What is the purpose of setting a key in data.table?
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edited May 23 '17 at 12:34
Community♦
111 silver badge
answered Nov 18 '13 at 20:39
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Does setting Java objects to null do anything anymore?
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73
It depends a bit on when you were thinking of nulling the reference.
If you have an object chai...
What are the details of “Objective-C Literals” mentioned in the Xcode 4.4 release notes?
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3 Answers
3
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What does “Document-oriented” vs. Key-Value mean when talking about MongoDB vs Cassandra?
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answered Jun 19 '10 at 16:53
Niels WindNiels Wind
40522 silver badges44 bronze badges
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Memory management in Qt?
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user2567875
36011 silver badge1717 bronze badges
answered Mar 22 '10 at 11:33
DebilskiDebilski
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Create unique constraint with null columns
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396
Create two partial indexes:
CREATE UNIQUE INDEX favo_3col_uni_idx ON favorites (user_id, menu...