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How to view the SQL queries issued by JPA?
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Also, if you're using EclipseLink and want to output the SQL parameter values, you can add this property to your persistence.xml file:
<property name="eclipselink.logging.parameters" value="true"/>
shar...
Test if a variable is set in bash when using “set -o nounset”
...LUE ends up being an empty string if WHATEVER is not set. We're using the {parameter:-word} expansion, which you can look up in man bash under "Parameter Expansion".
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How to stop /#/ in browser with react-router?
...URL mapping scheme is by passing a history implementation into the history parameter of <Router>. From the histories documentation:
In a nutshell, a history knows how to listen to the browser's address bar for changes and parses the URL into a location object that the router can use to mat...
Path.Combine for URLs?
..., then it works the way you'd expect (note the missing slash on the second parameter): new Uri(new Uri("test.com/mydirectory/"), "helloworld.aspx").ToString() results in "test.com/mydirectory/helloworld.aspx". Path.Combine behaves similarly. If the relative path parameter starts with a slash, it onl...
uwsgi invalid request block size
...figuration file we may want to use this: include /etc/nginx/uwsgi_params; uwsgi_pass django_upstream;
– mennanov
Feb 3 '15 at 18:04
4
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Applying a function to every row of a table using dplyr?
...rows
How we add the output of the function is controlled by the .collate param. There's three options: list, rows, cols. When our output has length 1, it doesn't matter whether we use rows or cols.
iris %>%
by_row(.collate = "cols", ..f = function(this_row) {
this_row[1:4] %>% unlist...
Convert a JSON String to a HashMap
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try this code :
Map<String, String> params = new HashMap<String, String>();
try
{
Iterator<?> keys = jsonObject.keys();
while (keys.hasNext())
{
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Java: How to convert List to Map
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@Jim: Do i need to set the getKey() to any specific parameter ?
– Rachel
Nov 9 '10 at 20:49
Als...
check android application is in foreground or not? [duplicate]
..., Boolean> {
@Override
protected Boolean doInBackground(Context... params) {
final Context context = params[0].getApplicationContext();
return isAppOnForeground(context);
}
private boolean isAppOnForeground(Context context) {
ActivityManager activityManager = (ActivityManage...
Pinging servers in Python
...alid.
"""
# Option for the number of packets as a function of
param = '-n' if platform.system().lower()=='windows' else '-c'
# Building the command. Ex: "ping -c 1 google.com"
command = ['ping', param, '1', host]
return subprocess.call(command) == 0
Note that, according ...