de.charite.compbio.jannovar.reference.Strand Maven / Gradle / Ivy

package de.charite.compbio.jannovar.reference;

/**
 * Representation for forward/backward strand.
 *
 * @author Manuel Holtgrewe
 */
public enum Strand {

	/**
	 * forward strand
	 */
	FWD,
	/**
	 * reverse strand
	 */
	REV;

	/**
	 * @return true if this is the forward strand
	 */
	public boolean isForward() {
		return (this == FWD);
	}

	/**
	 * @return true if this is the reverse strand
	 */
	public boolean isReverse() {
		return (this == REV);
	}

	@Override
	public String toString() {
		return (this == FWD) ? "+" : "-";
	}

	/**
	 * @return {@link #REV} if the char is '-', otherwise returns {@link #FWD}.
	 */
	public Strand valueOf(char strand) {
		return (strand == '-') ? REV : FWD;
	}
}