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Spring JPA selecting specific columns
... projects";
@Query(value = FIND_PROJECTS, nativeQuery = true)
public List<Object[]> findProjects();
Note that you will have to do the mapping yourself though. It's probably easier to just use the regular mapped lookup like this unless you really only need those two values:
public List<P...
How to return an array from JNI to Java?
...ArrayTest_initIntArray(JNIEnv *env, jclass cls, int size)
{
jintArray result;
result = (*env)->NewIntArray(env, size);
if (result == NULL) {
return NULL; /* out of memory error thrown */
}
int i;
// fill a temp structure to use to populate the java int array
jint fill[size];
for (i =...
R - Concatenate two dataframes?
...
You want "rbind".
b$b <- NA
new <- rbind(a, b)
rbind requires the data frames to have the same columns.
The first line adds column b to data frame b.
Results
> a <- data.frame(a=c(0,1,2), b=c(3,4,5), c=c(6,7,8))
> a
a b c
1 0 ...
http to https apache redirection
...ally followed this example and it worked for me :)
NameVirtualHost *:80
<VirtualHost *:80>
ServerName mysite.example.com
Redirect permanent / https://mysite.example.com/
</VirtualHost>
<VirtualHost _default_:443>
ServerName mysite.example.com
DocumentRoot /usr/local/a...
How can I return an empty IEnumerable?
...
You can use list ?? Enumerable.Empty<Friend>(), or have FindFriends return Enumerable.Empty<Friend>()
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How do I make a text input non-editable?
...
<input type="text" value="3" class="field left" readonly>
No styling necessary.
See <input> on MDN https://developer.mozilla.org/en/docs/Web/HTML/Element/input#Attributes
...
Using Html.ActionLink to call action on different controller
...ad :
//linkText, actionName, controllerName, routeValues, htmlAttributes
<%=Html.ActionLink("Details", "Details",
"Product", new {id = item.ID}, null) %>
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React.js: onChange event for contentEditable
...t){
this.setState({html: event.target.value});
}.bind(this);
return (<ContentEditable html={this.state.html} onChange={handleChange} />);
jsbin
Which uses this simple wrapper around contentEditable.
var ContentEditable = React.createClass({
render: function(){
return <d...
What's the difference between ViewData and ViewBag?
...for complex data type.
ViewBag & ViewData Example:
public ActionResult Index()
{
ViewBag.Name = "Arun Prakash";
return View();
}
public ActionResult Index()
{
ViewData["Name"] = "Arun Prakash";
return View();
}
Calling in View
@ViewBag.Name
@ViewData["Name...
KeyValuePair VS DictionaryEntry
...
KeyValuePair<TKey,TValue> is used in place of DictionaryEntry because it is generified. The advantage of using a KeyValuePair<TKey,TValue> is that we can give the compiler more information about what is in our dictionary. To...