package eu.dnetlib.dlms.jdbc.ast;

import java.sql.SQLException;

import eu.dnetlib.dlms.jdbc.ExecutorContext;
import eu.dnetlib.dlms.jdbc.server.IExpressionExecutor;

/**
 * A literal for numbers.
 * 
 * @author alessia
 * 
 */
public class NumberLit extends Lit {
	/** Number value. */
	private java.lang.Number number;

	/**
	 * {@inheritDoc}
	 * 
	 * @throws SQLException
	 * 
	 * @see eu.dnetlib.dlms.jdbc.ast.Expression#evaluate(eu.dnetlib.dlms.jdbc.server.IExpressionExecutor)
	 */
	@Override
	public Object evaluate(final IExpressionExecutor executor, final ExecutorContext context) throws SQLException {
		return executor.evaluate(this, context);
	}

	/**
	 * Constructor.
	 * 
	 * @param num
	 *            java.lang.Number instance to assign to this eu.dnetlib.dlms.jdbc.ast.Number
	 */
	public NumberLit(final java.lang.Number num) {
		this.setNumber(num);
	}

	public void setNumber(final java.lang.Number number) {
		this.number = number;
	}

	public java.lang.Number getNumber() {
		return this.number;
	}

	@Override
	public String toString() {
		return "NumberLit [number=" + this.number + "]";
	}

}