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What is the difference between the Data Mapper, Table Data Gateway (Gateway), Data Access Object (DA
I'm trying to brush up on my design pattern skills, and I'm curious what are the differences between these patterns? All of them seem like they are the same thing - encapsulate the database logic for a specific entity so the calling code has no knowledge of the underlying persistence layer. From m...
MISCONF Redis is configured to save RDB snapshots
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In case you encounter the error and some important data cannot be discarded on the running redis instance (problems with permissions for the rdb file or its directory incorrectly, or running out of disk space), you can always redirect the rdb file to be wri...
What is this operator in MySQL?
I'm working on code written by a previous developer and in a query it says,
9 Answers
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How can I include raw JSON in an object using Jackson?
...serialization-side only, since the reverse direction is a bit trickier to handle. In effect it was added to allow injecting pre-encoded content.
I guess it would be possible to add support for reverse, although that would be quite awkward: content will have to be parsed, and then re-written back to...
How to remove new line characters from a string?
... This was definitely the best solution for me. A smooth blend of this C# and javascript was all I needed to resolve my issue.
– Joe Brunscheon
Nov 26 '13 at 19:30
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How to return 2 values from a Java method?
...sider creating a class that represents the result that you want to return, and return an instance of that class. Give the class a meaningful name. The benefits of this approach over using an array are type safety and it will make your program much easier to understand.
Note: A generic Pair class, a...
Declaring an enum within a class
...is declared within the Car class in order to limit the scope of the enum and to try not to "pollute" the global namespace.
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Biggest differences of Thrift vs Protocol Buffers?
What are the biggest pros and cons of Apache Thrift vs Google's Protocol Buffers ?
15 Answers
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python max function using 'key' and lambda expression
I come from OOP background and trying to learn python.
I am using the max function which uses a lambda expression to return the instance of type Player having maximum totalScore among the list players .
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Best way to convert IList or IEnumerable to Array
... version of .NET are you using? If it's .NET 3.5, I'd just call ToArray() and be done with it.
If you only have a non-generic IEnumerable, do something like this:
IEnumerable query = ...;
MyEntityType[] array = query.Cast<MyEntityType>().ToArray();
If you don't know the type within that m...