SDKValueReference

public interface SDKValueReference<T>

SDKPathCollectionReference, SDKPathReference, SDKPropertyCollectionReference, SDKPropertyReference

Interface that provides access to derived values from SDKs.

The interface is a common subinterface to more concrete specializations. It defines the getValue(Map<String, ? extends SDKReference>) method that is responsible for deriving the result object from the information it can access from the argument SDKs.

Clients may implement this interface, but they are recommended to not directly implement it. Please refer to the more concrete subinterfaces of this.

Implementations should adhere to the hashCode() and equals(Object) contract. Implementers are also recommended to implement Externalizable.

TThe type of the derived value.

SDKPathReference

SDKPropertyReference

SDKPathCollectionReference

SDKPropertyCollectionReference

saker.sdk.support 0.8.3

Methods

public boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
public T	getValue(Map<String, ? extends SDKReference> sdks) Gets the derived value based on the arugment SDKs.
public int	hashCode() Returns a hash code value for the object.

public abstract boolean equals(Object obj)

Overridden from: Object

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

It is reflexive: for any non-null reference value x, x.equals(x) should return true.
It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
For any non-null reference value x, x.equals(null) should return false.

The equals method for class Object implements the most discriminating possible equivalence relation on objects; that is, for any non-null reference values x and y, this method returns true if and only if x and y refer to the same object (x == y has the value true).

Note that it is generally necessary to override the hashCode method whenever this method is overridden, so as to maintain the general contract for the hashCode method, which states that equal objects must have equal hash codes.

objthe reference object with which to compare.

true if this object is the same as the obj argument; false otherwise.

Object.hashCode()

HashMap

public abstract T getValue(Map<String, ? extends SDKReference> sdks) throws NullPointerException, Exception

Gets the derived value based on the arugment SDKs.

The method can access the information accessible via the argument SDKs and construct the return value based on that.

The result can be null, but implementations are encouraged to throw an appropriate exception instead.

sdksThe SDKs to derive the value from.

The derived value. May be null.

NullPointerExceptionIf the argument is null.

ExceptionIn case of failure.

public abstract int hashCode()

Overridden from: Object

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
It is not required that if two objects are unequal according to the Object.equals(Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java™ programming language.)

a hash code value for this object.

Object.equals(Object)

System.identityHashCode(Object)