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What is the difference between partitioning and bucketing a table in Hive ?
...system in memory.
Bucketing is another technique for decomposing data sets into more manageable parts. For example, suppose a table using date as the top-level partition and employee_id as the second-level partition leads to too many small partitions. Instead, if we bucket the employee table and use...
Access properties file programmatically with Spring?
...lues() { throw new UnsupportedOperationException(); }
@Override public int size() { throw new UnsupportedOperationException(); }
@Override public boolean containsValue(Object value) { throw new UnsupportedOperationException(); }
@Override public void clear() { throw new UnsupportedOperat...
vector vs. list in STL
...
Situations where you want to insert a lot of items into anywhere but the end of a sequence repeatedly.
Check out the complexity guarantees for each different type of container:
What are the complexity guarantees of the standard containers?
...
Disable EditText blinking cursor
... @Override
public boolean onEditorAction(TextView v, int actionId,
KeyEvent event) {
iEditText.setCursorVisible(false);
if (event != null&& (event.getKeyCode() == KeyEvent.KEYCODE_ENTER)) {
Inpu...
How to keep/exclude a particular package path when using proguard?
...ening, which can break your code. You can see the mapping in the mapping print out:
java.lang.String toString() -> toString
int getMemoizedSerializedSize() -> getMemoizedSerializedSize
void setMemoizedSerializedSize(int) -> setMemoizedSerializedSize
int getSerializedSize() -> getSeriali...
What is the command to exit a Console application in C#?
...
Several options, by order of most appropriate way:
Return an int from the Program.Main method
Throw an exception and don't handle it anywhere (use for unexpected error situations)
To force termination elsewhere, System.Environment.Exit (not portable! see below)
Edited 9/2013 to impro...
Can I use Objective-C blocks as properties?
...d accomplish such a task:
#import <Foundation/Foundation.h>
typedef int (^IntBlock)();
@interface myobj : NSObject
{
IntBlock compare;
}
@property(readwrite, copy) IntBlock compare;
@end
@implementation myobj
@synthesize compare;
- (void)dealloc
{
// need to release the block si...
Why can I use auto on a private type?
...ypes to template functions:
template <typename T>
void fun(T t) {}
int main() {
Foo f;
fun(f.Baz()); // ok
}
And why can we pass objects of private types to template functions, you ask? Because only the name of the type is inaccessible. The type itself is still usable, whic...
How set the android:gravity to TextView from Java side in Android
...he text size to get the total amount of lines possible with the TextView.
int maxLines = (int) TextView.getHeight() / (int) TextView.getTextSize();
After you get this value you need to set your TextView maxLines to this new value.
TextView.setMaxLines(maxLines);
Set the Gravity to Bottom...
Default value in Go's method
... are optional, use empty string for default value
func Concat1(a string, b int) string {
if a == "" {
a = "default-a"
}
if b == 0 {
b = 5
}
return fmt.Sprintf("%s%d", a, b)
}
**Option 2:** A single optional parameter at the end
// a is required, b is optional.
// Only the first ...