ChildDescriptor.java

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package org.egothor.stemmer.trie;

import java.util.Objects;

/**
 * Child signature descriptor.
 *
 * @param <V> value type
 */
/* default */ final class ChildDescriptor<V> {

    /**
     * Edge character.
     */
    private final char edge;

    /**
     * Child subtree signature.
     */
    private final ReductionSignature<V> childSignature;

    /**
     * Creates a child descriptor.
     *
     * @param edge           edge character
     * @param childSignature child signature
     */
    /* default */ ChildDescriptor(final char edge, final ReductionSignature<V> childSignature) {
        this.edge = edge;
        this.childSignature = childSignature;
    }

    @Override
    public int hashCode() {
        return Objects.hash(this.edge, this.childSignature);
    }

    @Override
    public boolean equals(final Object other) {
        if (this == other) {
            return true;
        }
        if (!(other instanceof ChildDescriptor<?>)) {
            return false;
        }
        final ChildDescriptor<?> that = (ChildDescriptor<?>) other;
        return this.edge == that.edge && Objects.equals(this.childSignature, that.childSignature);
    }
}