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Factory pattern in C#: How to ensure an object instance can only be created by a factory class?
...some check before creating an object, probably in its constructor. This is all okay until I decide I want to make this check be a part of the business logic. So, how can I arrange for a business object to be creatable only through some method in my business logic class but never directly? The first ...
How to Free Inode Usage?
...age is 100% (using df -i command).
However after deleting files substantially, the usage remains 100%.
15 Answers
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How can I ask the Selenium-WebDriver to wait for few seconds in Java?
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haventchecked, actually using intelij IDEA for development, it's helping with auto-imports (when working in maven-based project)
– eugene.polschikov
Jun 28 '16 at 10:47
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NoSql Crash Course/Tutorial [closed]
... system that would use it or how I would implement it in my system. I'm really stuck in a relational-db mindset thinking of things in terms of tables and joins...
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Chrome: console.log, console.debug are not working
...g not printing, only return undefined. Why it can be?
I've tried to re-install chrome, but it doesn't help.
20 Answers
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Spring vs EJB. Can Spring replace EJB? [closed]
...t Java EE app server to another. But that means staying away from any and all vendor-specific extensions that lock you in to one vendor.
Spring ports easily between app servers (e.g., WebLogic, Tomcat, JBOSS, etc.) because it doesn't depend on them.
However, you are locked into Spring.
Spring en...
Eclipse: enable assertions
...enable assertions.
Click on the Apply and then Run button.
To globally set it as the default for everything:
Go to menu Window (if you are on Windows), or go to menu Eclipse (if you are on Mac). For Linux it might be something similar.
Go to Preferences.
Choose Java, and then Installed JR...
NSObject +load and +initialize - What do they do?
...ride +initialize or +load. Documentation makes it clear these methods are called for you by the Objective-C runtime, but that's really all that is clear from the documentation of those methods. :-)
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How do I analyze a program's core dump file with GDB when it has command-line parameters?
...xt_ptr = "string in text segment";
(void)argv;
mmap_ptr = (char *)malloc(sizeof(data_ptr) + 1);
strcpy(mmap_ptr, data_ptr);
mmap_ptr[10] = 'm';
mmap_ptr[11] = 'm';
mmap_ptr[12] = 'a';
mmap_ptr[13] = 'p';
printf("text addr: %p\n", text_ptr);
printf("data addr: %p\n...
How to listen for changes to a MongoDB collection?
...tricks. The key here is the oplog.
When you run MongoDB in a Replica Set, all of the MongoDB actions are logged to an operations log (known as the oplog). The oplog is basically just a running list of the modifications made to the data. Replicas Sets function by listening to changes on this oplog a...