org.numenta.nupic.util.MutableNamedTuple Maven / Gradle / Ivy

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package org.numenta.nupic.util;

import java.util.Collection;
import java.util.stream.IntStream;

public class MutableNamedTuple extends NamedTuple {
    /** for serialization */
    private static final long serialVersionUID = 1L;
    
    public MutableNamedTuple() {}
    
    public MutableNamedTuple(String[] keys, Object[] objects) {
        super(keys, objects);
    }

    /**
     * Sets the value at the specified index to be the
     * indicated object.
     * 
     * @param index     the index at which to set the specified object
     * @param o         the new object to store
     */
    public void put(String key, Object o) {
        if(hasKey(key)) {
            // Swap the value for the specified key in the parent Tuple container
            int containerKeyIdx = IntStream.range(0, container.length).filter(i -> container[i].equals(key)).findFirst().getAsInt();
            container[containerKeyIdx + 1] = o;
            
            // Swap the value in the hashed buckets
            int hash = hashIndex(key);
            Entry e = entries[hash].find(key, hash);
            e.value = o;
        }else{
            String[] keys = keys();
            Collection