addLayoutRule

Adds or sets a new rule, depending on if the rule with key - Key already exists or no;

AddLayoutRule

Builds a key as a pair of the objects Object1 and Object2 and adds or sets a new rule, with this key anf value - Value.

buildKey

Builds a key - object for the new rule, as a pair of two objects: obj1 and obj2

getLayoutRule

If there is rule with key - Key initializes - Value otherwise fails;