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Limit file format when using ?
...like to know if there is a solution. I'd like to keep solely to HTML and JavaScript; no Flash please.
11 Answers
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In Hibernate Validator 4.1+, what is the difference between @NotNull, @NotEmpty, and @NotBlank?
... explanation in the below link:
http://www.itprogrammingtutorials.com/2015/java/hibernate/hibernate-validator-diff-notblank-notempty/
@NotNull: Checks whether the value is not null, disregarding the content
@NotEmpty: Checks whether the value is not null nor empty. If it has just empty spaces, it ...
Detect URLs in text with JavaScript
... but rather a proof of how to do the string wrapping inside the text, with JavaScript.
OK so lets just use this one: /(https?:\/\/[^\s]+)/g
Again, this is a bad regex. It will have many false positives. However it's good enough for this example.
function urlify(text) {
var urlRegex = /(htt...
What is monkey patching?
... version of your class / method (rather than modifying it). A lot of C# / Java programmers don't know about REPL driven development, so they code in their IDEs that requires that everything be statically defined. Since C#/Java didn't have monkey-patching, they assume its evil when they see it in J...
@UniqueConstraint and @Column(unique = true) in hibernate annotation
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From the Java EE documentation:
public abstract boolean unique
(Optional) Whether the property is a unique key. This is a shortcut for the
UniqueConstraint annotation at the table level and is useful for when the unique key...
Mocking member variables of a class using Mockito
... @IgorGanapolsky the @ Resource is a annotation created/used by the Java Spring framework. Its a way to indicate to Spring this is a bean/object managed by Spring. stackoverflow.com/questions/4093504/resource-vs-autowired baeldung.com/spring-annotations-resource-inject-autowire It is not a m...
When is a function too long? [closed]
...e standard API isn't always a model of elegance. Furthermore, much of the Java API was developed with an intimate knowledge of the Java Compiler and JVM, hence you have performance considerations that may explain it. I concede that critical sections of code that can not waste a single millisecond ...
How default .equals and .hashCode will work for my classes?
... into an integer, but this implementation technique is not required by the JavaTM programming language.)
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How to generate the JPA entity Metamodel?
...;-AaddGeneratedAnnotation=false</compilerArguments> <!-- suppress java.annotation -->
<processors>
<processor>org.hibernate.jpamodelgen.JPAMetaModelEntityProcessor</processor>
</processors>
</configuration...
Package objects
...ed to emulate a package wide import
// especially useful when wrapping a Java API
type DateTime = org.joda.time.DateTime
type JList[T] = java.util.List[T]
// Define implicits needed to effectively use your API:
implicit def a2b(a: A): B = // ...
}
Now the definitions inside that packa...