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Which annotation should I use: @IdClass or @EmbeddedId
...s to be read-only(@PrimaryKeyJoinColumn) because you can't have one column set in two variables (possible conflicts).
So you have to set your FK using simple type in @Embeddedable.
On the other site using @IdClass this situation can be handled much easier as shown in Primary Keys through OneToOne a...
Force to open “Save As…” popup open at text link click for PDF in HTML
.... If you don't have access to the server, then you can try to proxy it and set the response header manually.
– jean-baptiste
May 19 '18 at 14:39
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...
Which CheckedListBox event triggers after a item is checked?
...// Switch off event handler
clb.ItemCheck -= clbOrg_ItemCheck;
clb.SetItemCheckState(e.Index, e.NewValue);
// Switch on event handler
clb.ItemCheck += clbOrg_ItemCheck;
// Now you can go further
CallExternalRoutine();
}
...
Why does calling a method in my derived class call the base class method?
...ar
Baz
Bai
Bat
---
Bar
Bar
Bai
Bai
Bat
---
Bar
Bar
Bai
Bai
Bat
The first set of five is all to be expected; because each level has an implementation, and is referenced as an object of the same type as was instantiated, the runtime resolves each call to the inheritance level referenced by the varia...
Return XML from a controller's action in as an ActionResult?
...ate readonly XDocument _document;
public Formatting Formatting { get; set; }
public string MimeType { get; set; }
public XmlActionResult(XDocument document)
{
if (document == null)
throw new ArgumentNullException("document");
_document = document;
...
Can I store images in MySQL [duplicate]
... your employees photos and you have <20 employee AND you do NOT want to setup a web server or some kind of "file-sharing" AND ALSO your application supports remote management. Guess what, storing the images in database is your one-and-only best shot!
– Roni Tovi
...
What are Maven goals and phases and what is their difference?
...in Goals
Most of Maven's functionality is in plugins. A plugin provides a set of goals that can be executed using the following syntax:
mvn [plugin-name]:[goal-name]
For example, a Java project can be compiled with the compiler-plugin's compile-goal by running mvn compiler:compile.
Build ...
Command prompt won't change directory to another drive
...d /d d:\Docs\Java
For more help on the cd command use:
C:\Documents and Settings\kenny>help cd
Displays the name of or changes the current directory.
CHDIR [/D] [drive:][path]
CHDIR [..]
CD [/D] [drive:][path]
CD [..]
.. Specifies that you want to change to the parent di...
Shortcuts in Objective-C to concatenate NSStrings
...d with an NSMutableString and -appendString to avoid creating an unbounded set of temporary autoreleased NSStrings.
– Rob Napier
Feb 16 '10 at 14:34
1
...
How to prevent the activity from loading twice on pressing the button
...the button and show another activity.
Button b = (Button) view;
b.setEnabled(false);
Intent i = new Intent(this, AnotherActitivty.class);
startActivity(i);
Override onResume() to re-enable the button.
@Override
protected void onResume() {
super.onResume();
B...