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package org.gnu.glpk;
/**
* Callback Listener.
* <p>The GLPK MIP solver calls method {@link GlpkCallback#callback(long)
* GLPK.callback} in the branch-and-cut algorithm. A listener to the callback
* can be used to influence the sequence in which nodes of the search tree are
* evaluated, or to supply a heuristic solution.
* @see GlpkCallback
*/
public interface GlpkCallbackListener {
/**
* Method call by the GLPK MIP solver in the branch-and-cut algorithm.
* @param tree search tree
*/
void callback(glp_tree tree);
}
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