o != arg0 is the same as !(o == (arg0)).
o != arg0 is the same as !(o == (arg0)).
the object to compare against this object for dis-equality.
false if the receiver object is equivalent to the argument; true otherwise.
[use case] Special overload of the + method to return Attributes rather thanMap[QName, String].
Special overload of the + method to return Attributes rather thanMap[QName, String]. Unfortunately, the + method is one of those places
where the magic of the 2.8 collections library really falls flat. The good
news is that Scala's overload resolution will select this version of the+ method for all where the second tuple value is of type String (this
precedence is ensured by the DummyImplicit parameter). Implicit conversions
can be applied to the parameter. Thus, it is possible to invoke + onAttributes passing a value of type (String, String). That value will
be implicitly converted to (QName, String) and this version of +will be invoked.
Special overload of the + method to return Attributes rather thanMap[QName, String].
Special overload of the + method to return Attributes rather thanMap[QName, String]. Unfortunately, the + method is one of those places
where the magic of the 2.8 collections library really falls flat. The good
news is that Scala's overload resolution will select this version of the+ method for all where the second tuple value is of type String (this
precedence is ensured by the DummyImplicit parameter). Implicit conversions
can be applied to the parameter. Thus, it is possible to invoke + onAttributes passing a value of type (String, String). That value will
be implicitly converted to (QName, String) and this version of +will be invoked.
In short, the only time the "other" overload of + is dispatched is when
you attempt to add a key/value pair where the value is not of typeString, or if you ascribe the super-type of Map[QName, String] to
something of type Attributes. Neither of these are common scenarios, so
this implicit overload trick should be sufficient to practically support
the illusion of QName / String interchangability.
o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).
o == arg0 is the same as if (o eq null) arg0 eq null else o.equals(arg0).
the object to compare against this object for equality.
true if the receiver object is equivalent to the argument; false otherwise.
o == arg0 is the same as o.equals(arg0).
o == arg0 is the same as o.equals(arg0).
the object to compare against this object for equality.
true if the receiver object is equivalent to the argument; false otherwise.
This method is used to cast the receiver object to be of type T0.
This method is used to cast the receiver object to be of type T0.
Note that the success of a cast at runtime is modulo Scala's erasure semantics. Therefore the expression1.asInstanceOf[String] will throw a ClassCastException at runtime, while the expressionList(1).asInstanceOf[List[String]] will not. In the latter example, because the type argument is erased as
part of compilation it is not possible to check whether the contents of the list are of the requested typed.
the receiver object.
This method creates and returns a copy of the receiver object.
This method creates and returns a copy of the receiver object.
The default implementation of the clone method is platform dependent.
a copy of the receiver object.
use iterator' instead
This method is used to test whether the argument (arg0) is a reference to the
receiver object (this).
This method is used to test whether the argument (arg0) is a reference to the
receiver object (this).
The eq method implements an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence relation] on
non-null instances of AnyRef:
* It is reflexive: for any non-null instance x of type AnyRef, x.eq(x) returns true.
* It is symmetric: for any non-null instances x and y of type AnyRef, x.eq(y) returns true if and
only if y.eq(x) returns true.
* It is transitive: for any non-null instances x, y, and z of type AnyRef if x.eq(y) returns true and y.eq(z) returns true, then x.eq(z) returns true.
Additionally, the eq method has three other properties.
* It is consistent: for any non-null instances x and y of type AnyRef, multiple invocations of
x.eq(y) consistently returns true or consistently returns false.
* For any non-null instance x of type AnyRef, x.eq(null) and null.eq(x) returns false.
* null.eq(null) returns true.
When overriding the equals or hashCode methods, it is important to ensure that their behavior is
consistent with reference equality. Therefore, if two objects are references to each other (o1 eq o2), they
should be equal to each other (o1 == o2) and they should hash to the same value (o1.hashCode == o2.hashCode).
the object to compare against this object for reference equality.
true if the argument is a reference to the receiver object; false otherwise.
This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.
This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.
The default implementations of this method is an [http://en.wikipedia.org/wiki/Equivalence_relation equivalence
relation]:
* It is reflexive: for any instance x of type Any, x.equals(x) should return true.
* It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and
only if y.equals(x) returns true.
* It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and
y.equals(z) returns true, then x.equals(z) should return true.
If you override this method, you should verify that your implementation remains an equivalence relation.
Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects
that are "equal" (o1.equals(o2) returns true) hash to the same
scala.Int
(o1.hashCode.equals(o2.hashCode)).
true if the receiver object is equivalent to the argument; false otherwise.
This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.
This method is called by the garbage collector on the receiver object when garbage collection determines that there are no more references to the object.
The details of when and if the finalize method are invoked, as well as the interaction between finalizeand non-local returns and exceptions, are all platform dependent.
use head' instead
use headOption' instead
Returns a representation that corresponds to the dynamic class of the receiver object.
Returns a representation that corresponds to the dynamic class of the receiver object.
The nature of the representation is platform dependent.
a representation that corresponds to the dynamic class of the receiver object.
Returns a hash code value for the object.
Returns a hash code value for the object.
The default hashing algorithm is platform dependent.
Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet
not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0.
However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have
identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure
to verify that the behavior is consistent with the equals method.
the hash code value for the object.
This method is used to test whether the dynamic type of the receiver object is T0.
This method is used to test whether the dynamic type of the receiver object is T0.
Note that the test result of the test is modulo Scala's erasure semantics. Therefore the expression1.isInstanceOf[String] will return false, while the expression List(1).isInstanceOf[List[String]] will
return true. In the latter example, because the type argument is erased as part of compilation it is not
possible to check whether the contents of the list are of the requested typed.
true if the receiver object is an instance of erasure of type T0; false otherwise.
use mapValues' instead
o.ne(arg0) is the same as !(o.eq(arg0)).
o.ne(arg0) is the same as !(o.eq(arg0)).
the object to compare against this object for reference dis-equality.
false if the argument is not a reference to the receiver object; true otherwise.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up a single thread that is waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
Wakes up all threads that are waiting on the receiver object's monitor.
use view' instead
Returns a string representation of the object.
Returns a string representation of the object.
The default representation is platform dependent.
a string representation of the object.
use updated' instead
A special implementation of scala.collection.Map
[QName, String]with nice overloading and some implicit magic designed for use containing element attributes in Elem. The actual stored keys are of type QName. This is how (optional) namespace information for attributes is stored in Anti-XML trees. However, there are some syntactic tricks which allow you to ignore the QName boiler-plate when you don't actually need namespace support. For example:val attrs = Attributes("foo" -> "bar", "baz" -> "bin") attrs("foo") // => "bar" attrs(QName(None, "foo")) // => "bar" val attrs2 = attrs + ("even" -> "more") // => Attributes(...) val attrs3 = attrs + (QName(Some("pre"), "even" -> "less") // => Attributes(...)With very, very few exceptions,
Stringand QName are interchangable. Of course, this is being done with implicit conversions. However, you don't need to worry about the conversionString => QNamepoluting the implicit dispatch space! The conversion is defined on the companion object for QName, meaning that the compiler will only select it when the result of an expression is explicitly of typeQName. It will not automatically inject the conversion to satisfy method dispatch onString. For example:In this example, it is important to note that
nsis a method on QName. Thus, if the implicit conversion were pimp-enabling, the compiler would have accepted the last line of the example. However, as you can see, the implicit dispatch space has not been cluttered while the convenience ofStringrather than QName has been preserved.One implicit space-cluttering that couldn't be avoided is the conversion defined as
(String, String) => (QName, String). This is required to enable the niceStringsyntax on things like the+method and the companion objectapplyfactory. Unfortunately, this conversion had to be defined in the antixml companion object. Fortunately, it is a conversion within the same type (simply different parameters passed toTuple2). Thus, it shouldn't cause any scoping problems.see also:
QName