Interface SymExtension

public interface SymExtension

A node that needs more than its inputs bound: an operator whose parameters are chosen per evaluation, from data the expression cannot name. The builder gives it the block it landed on and the function being built, and it registers whatever hooks and captures it needs.

This is what keeps composites out of the builder. A bilinear grid, for instance, picks the four knots surrounding a pixel and hands their parameter slices to its operator, then publishes those same slices as Jacobian columns — all of which it does through this interface, so nothing about grids appears here or in SymGraphBuilder.

Method Summary

Modifier and Type	Method	Description
void	install(JacobianSerialChain<double[]> chains, int block, SymFunction function)	Registers pre-forward hooks and moving Jacobian columns.
default boolean	ownsInput(int slot)	True when the extension supplies this input itself, so the builder must not demand that the expression bind it

Method Details

install

void install(JacobianSerialChain<double[]> chains,
 int block,
 SymFunction function)

Registers pre-forward hooks and moving Jacobian columns. Called once, before the graph is fixated, with the terminals already resolved to their handles

ownsInput

default boolean ownsInput(int slot)

True when the extension supplies this input itself, so the builder must not demand that the expression bind it