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Get an object properties list in Objective-C
...-C Runtime Library, I had access to the properties the way I wanted:
- (void)myMethod {
unsigned int outCount, i;
objc_property_t *properties = class_copyPropertyList([self class], &outCount);
for(i = 0; i < outCount; i++) {
objc_property_t property = properties[i];
...
中文网（自研/维护）拓展 · App Inventor 2 中文网
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中文网（自研/维护...
Specifying an Index (Non-Unique Key) Using JPA
... indexes = {@Index(name = "i_company_activity", columnList = "activity_id,company_id")})
public class CompanyActivity{
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std::vector performance regression when enabling C++11
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NB: inline has nothing to do with function inlining; it means “defined inline” not “please inline this”. If you want to actually ask for inlining, use __attribute__((always_inline)) or similar.
– Jon Purdy
Jan 24 '14 at 19:07
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What is a Maven artifact?
...ts, such as a compiled JAR and a "sources" JAR.
Each artifact has a group ID (usually a reversed domain name, like com.example.foo), an artifact ID (just a name), and a version string. The three together uniquely identify the artifact.
A project's dependencies are specified as artifacts.
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ByteBuffer.allocate() vs. ByteBuffer.allocateDirect()
... the process, in
this case the JVM process, to transfer
the data. This means that memory areas
that are targets of I/O perations must
be contiguous sequences of bytes. In
the JVM, an array of bytes may not be
stored contiguously in memory, or the
Garbage Collector could move it at any
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Measure the time it takes to execute a t-sql query
... looked for Sql Profiler doc on how to do this but couldn't find doc that didn't require hours of reading. Can you recommend a "Profiler for Dummies" link?
– TheMoot
Jul 26 '12 at 18:05
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Can constructors throw exceptions in Java?
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Yes, constructors can throw exceptions. Usually this means that the new object is immediately eligible for garbage collection (although it may not be collected for some time, of course). It's possible for the "half-constructed" object to stick around though, if it's made itself...
vim - How to delete a large block of text without counting the lines?
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It sort of depends on what that large block is. Maybe you just mean to delete a paragraph in which case a dip would do.
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How to find Unused Amazon EC2 Security groups
... find a way to determine orphan security groups so I can clean up and get rid of them. Does anyone know of a way to discover unused security groups.
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