package morphology.parser;

/**
 * Encapsulation of noun ending features.
 *
 * Project: NGSLT --> NLP --> Words --> Assignment #1
 * @author Normunds Grūzītis, Gunta Nešpore, Baiba Saulīte
 * @date February 2006
 */
public class NounEndingFeature extends EndingFeature {

	private String decl;
	private String number;
	private String icase;

	/**
	 * Constructor.
	 * @param decl declension.
	 * @param number person number.
	 * @param icase inflectional case.
	 */
	public NounEndingFeature(String decl, String number, String icase) {
		this.decl = decl;
		this.number = number;
		this.icase = icase;
	}

	/**
	 * Gets inflectional paradigm of the ending.
	 * @return code of the paradigm (e.g., 'D1', 'D2').
	 */
	public String getParadigm() {
		return decl;
	}

	/**
	 * Gets person number represented by the ending.
	 * @return number (e.g., 'SG' or 'PL').
	 */
	public String getNumber() {
		return number;
	}
	
	/**
	 * Gets inflectional case represented by the ending.
	 * @return case (e.g., 'NOM', 'GEN').
	 */
	public String getCase() {
		return icase;
	}
	
	/**
	 * Indicates whether some other feature is equal by content to this one.
	 * @param obj the reference object with which to compare.
	 * @return true if this feature is the same as the argument; false otherwise.
	 */
	public boolean equals(Object obj) {
		boolean isEqual = false;

		if (obj instanceof NounEndingFeature) {
			NounEndingFeature feature = (NounEndingFeature)obj;
			if (feature.getParadigm().equals(decl) && feature.getNumber().equals(number) && 
				feature.getCase().equals(icase)) {
					
				isEqual = true;
			}
		}

		return isEqual;
	}
	
	/**
	 * Gives string representation of this feature object.
	 * @return feature string.
	 */
	public String toString() {
		return decl + " " + number + " " + icase;
	}

}