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Jackson serialization: ignore empty values (or null)
...aving some trouble ignoring fields when I'm converting an object to a JSON string.
8 Answers
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How do I assert my exception message with JUnit Test annotation?
... Note: For me when the expectMessage was specified as an empty string, the comparison for the message was not performed
– redDevil
Nov 29 '15 at 9:23
1
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Unit testing that events are raised in C# (in order)
...g test:
[TestMethod]
public void Test_ThatMyEventIsRaised()
{
List<string> receivedEvents = new List<string>();
MyClass myClass = new MyClass();
myClass.PropertyChanged += delegate(object sender, PropertyChangedEventArgs e)
{
receivedEvents.Add(e.PropertyName);
...
Enum String Name from Value
... the int back to an enumeration member with a simple cast, and then call ToString():
int value = GetValueFromDb();
var enumDisplayStatus = (EnumDisplayStatus)value;
string stringValue = enumDisplayStatus.ToString();
share
...
Passing two command parameters using a WPF binding
...public object Convert(object[] values, ...)
{
Tuple<string, string> tuple = new Tuple<string, string>(
(string)values[0], (string)values[1]);
return (object)tuple;
}
}
// ...
public void OnExecute(object parameter)
{
var param = (...
PostgreSQL LIKE query performance variations
...E operator at all, it has its own operators and doesn't work for arbitrary strings. It operates on words based on dictionaries and stemming. It does support prefix matching for words, but not with the LIKE operator:
Get partial match from GIN indexed TSVECTOR column
Trigram indexes for LIKE
Ins...
Concatenate multiple files but include filename as section headers
...
@Acumenus For myself I had to use: String="${String//$'\n'::::::::::::::$'\n'/|}" then: String="${String//::::::::::::::$'\n'/}" and finally: String="${String//$'\n'/|}" to make into a YAD array: IFS='|' read -ra OLD_ARR <<< "$String"
...
How to disable / enable dialog negative positive buttons?
...ilder = new AlertDialog.Builder(this);
builder.setPositiveButton(android.R.string.ok, null);
AlertDialog dialog = builder.create();
dialog.setOnShowListener(new OnShowListener() {
@Override
public void onShow(DialogInterface dialog) {
if (condition) {
((AlertDialog)dial...
What's the best way to get the current URL in Spring MVC?
...the whole URL with one call. You have to build it manually:
public static String makeUrl(HttpServletRequest request)
{
return request.getRequestURL().toString() + "?" + request.getQueryString();
}
I don't know about a way to do this with any Spring MVC facilities.
If you want to access the c...
Does PowerShell support constants?
...datatype when using Set-Variable? When dealing with variables one may use [string]$name = value but that seems not to be possible for constants?
– masi
Dec 1 '12 at 23:32
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