package de.fhdw.wtf.persistence.utils;
   
   import java.math.BigDecimal;
   import java.math.BigInteger;
   import java.sql.CallableStatement;
   import java.sql.SQLException;
   
   import de.fhdw.wtf.persistence.exception.NotValidInputException;
   import de.fhdw.wtf.persistence.meta.IntegerValue;
  import de.fhdw.wtf.persistence.meta.Object;
  
  /**
   * Wrapper for a Integer for a Database-Query.
   */
  public class DBConnectionIntegerHandler implements DBConnectionObjectHandler {
  	
  	private final BigInteger integer;
  	
  	@Override
  	public String getObjectTypeString() {
  		return "Int";
  	}
  	
  	@Override
  	public void handleCall(final CallableStatement call, final int parameterIndex) throws SQLException {
  		final BigDecimal wrapper = new BigDecimal(this.integer);
  		call.setBigDecimal(parameterIndex, wrapper);
  	}
  	
  	@Override
  	public Object getObject() {
  		return new IntegerValue(this.integer);
  	}
  	
  	/**
  	 * creates a wrapper for a integer for a database connection.
  	 * 
  	 * @param integer
  	 *            the wrapped integer
  	 * @throws NotValidInputException
  	 *             throws when the given integer is null
  	 */
  	public DBConnectionIntegerHandler(final BigInteger integer) throws NotValidInputException {
  		super();
  		
  		if (integer == null) {
  			throw new NotValidInputException("integer");
  		}
  		
  		this.integer = integer;
  	}
  }