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This module contains the sequence datastructure of the TCS Alignment Toolbox. It defines the possible value sets in the ValueType enum as well as the different KeywordSpecification classes, namely: 1.) StringKeywordSpecification for string type values. 2.) SymbolicKeywordSpecification for values from a discrete alphabet (also refer to the Alphabet class) 3.) VectorialKeywordSpecification for vectors of some length (or for scalars) A NodeSpecification is a vector of such KeywordSpecifications and defines the order of value sets. A node, then, is defined as a vector of values from these value sets (also refer to the Value interface as well as the StringValue, SymbolicValue and VectorialValue classes). Finally a sequence is defined as a list of such nodes.

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/* 
 * TCS Alignment Toolbox Version 3
 * 
 * Copyright (C) 2016
 * Benjamin Paaßen
 * AG Theoretical Computer Science
 * Centre of Excellence Cognitive Interaction Technology (CITEC)
 * University of Bielefeld
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 * 
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see .
 */

package de.citec.tcs.alignment.sequence;

import lombok.NonNull;

/**
 * This specifies vectors by their length.
 *
 * @author Benjamin Paassen - [email protected]
 */
public class VectorialKeywordSpecification extends KeywordSpecification {

	private final int length;

	public VectorialKeywordSpecification(int length, @NonNull String keyword) {
		super(keyword, ValueType.VECTOR);
		this.length = length;
	}

	/**
	 * The length all vectors for this keyword have to have.
	 *
	 * @return The length all vectors for this keyword have to have.
	 */
	public int getLength() {
		return length;
	}

	/**
	 * This applies the KeywordSpecification validation and additionally checks
	 * whether the given value has the correct length.
	 *
	 * {@inheritDoc }
	 */
	@Override
	public boolean validate(Value value) {
		return value == null
				|| (super.validate(value)
				&& ((VectorialValue) value).getVector().length == length);
	}

	@Override
	public int hashCode() {
		int hash = 7;
		hash = 59 * hash + super.hashCode();
		hash = 59 * hash + this.length;
		return hash;
	}

	@Override
	public boolean equals(Object obj) {
		if (obj == null) {
			return false;
		}
		if (getClass() != obj.getClass()) {
			return false;
		}
		final VectorialKeywordSpecification other = (VectorialKeywordSpecification) obj;
		if (!super.equals(obj)) {
			return false;
		}
		if (this.length != other.length) {
			return false;
		}
		return true;
	}
}