ZEnvironment

Adds a service to the environment.

Compares the receiver object (this) with the argument object (that) for equivalence.

Any implementation of this method should be an 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 Any 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 usually necessary to override hashCode to ensure that objects which are "equal" (o1.equals(o2) returns true) hash to the same scala.Int. (o1.hashCode.equals(o2.hashCode)).

Retrieves a service from the environment.

Retrieves a service from the environment corresponding to the specified key.

Retrieves a service from the environment if it exists in the environment.

Prunes the environment to the set of services statically known to be contained within it.

The size of the environment, which is the number of services contained in the environment. This is intended primarily for testing purposes.

Returns a string representation of the object.

The default representation is platform dependent.

Combines this environment with the specified environment.

Combines this environment with the specified environment. In the event of service collisions, which may not be reflected in statically known types, the right hand side will be preferred.

Updates a service in the environment.

Updates a service in the environment corresponding to the specified key.

Calculate 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.