to do a text search on all fields, you first must create a text index on all fields. as the mongodb documentation indicates, “To allow for text search on all fields with string content, use the wildcard specifier ($**) to index all fields that contain string content.” if you are working inside the mongo shell … Read more
A slightly simplified answer: public class Book { private final String title; public Book(String title) { this.title = title; } public Book() { this(“Default Title”); } … }
Setting a form element to disabled will stop it going to the server, e.g.: <input disabled=”disabled” type=”text” name=”test”/> In javascript it would mean something like this: var inputs = document.getElementsByTagName(‘input’); for(var i = 0;i < inputs.length; i++) { if(inputs[i].style.display == ‘none’) { inputs[i].disabled = true; } } document.forms[0].submit(); In jQuery: $(‘form > input:hidden’).attr(“disabled”,true); $(‘form’).submit();
1.-> for accessing object member variables and methods via pointer to object Foo *foo = new Foo(); foo->member_var = 10; foo->member_func(); 2.. for accessing object member variables and methods via object instance Foo foo; foo.member_var = 10; foo.member_func(); 3.:: for accessing static variables and methods of a class/struct or namespace. It can also be used … Read more
For MongoDB 3.6 and newer: The $expr operator allows the use of aggregation expressions within the query language, thus you can leverage the use of $strLenCP operator to check the length of the string as follows: db.usercollection.find({ name: { $exists: true }, $expr: { $gt: [{ $strLenCP: ‘$name’ }, 40] } }) For MongoDB 3.4 … Read more
You can do what you described by having a final field in your abstract class that is initialised in its constructor (untested code): abstract class Base { final String errMsg; Base(String msg) { errMsg = msg; } abstract String doSomething(); } class Sub extends Base { Sub() { super(“Sub message”); } String doSomething() { return … Read more
You can: typeof(Foo) .GetField(“bar”,BindingFlags.Instance|BindingFlags.NonPublic) .SetValue(foo,567);
Consider simulating an input field with a fixed prefix or suffix using a span with a border around a borderless input field. Here’s a basic kickoff example: .currencyinput { border: 1px inset #ccc; } .currencyinput input { border: 0; } <span class=”currencyinput”>$<input type=”text” name=”currency”></span>
Yes.You can try with some hidden params. $(“#form”).submit( function(eventObj) { $(“<input />”).attr(“type”, “hidden”) .attr(“name”, “something”) .attr(“value”, “something”) .appendTo(“#form”); return true; });
Fields and properties look the same, but they are not. Properties are methods and as such there are certain things that are not supported for properties, and some things that may happen with properties but never in the case of fields. Here’s a list of differences: Fields can be used as input to out/ref arguments. … Read more