Composites allow components to switch between composites and
Components end their life the way they started. Leaves
continue to be leaves throughout, while composites continue to be composites
Every component is a leaf and will perform the primitive,
low-level operations on it in addition to forwarding messages to its children
to perform similar operations
2b Leaf-on-Branch Composite
Composites do not have primitive functions and simply
forward processing instructions to their child components (typical case).
Some composites behave as leaves at the level above it and
composites to the level below it as in the election vote-counting system. This
may seem obvious and readers may think it is the typical case, but what we are
saying is that in this scheme, the highest levels of composites are affected
empirically by the lowest level leaves. Another good example of this is in the
electoral-college system of voting, where you can lose the popular vote but
still become president.
Every single leaf and mid-level composite filters up to the
highest level and is counted there.
4a Birth-Cert composite
Leaves know who their parents are and can reference their
parent in performing their operations. One could argue that you could achieve the
same results by passing a “my-parent” token to the children as you traverse
them, but how do you access the grand-parent when you need to?
4b Foster-Child Composite