// This Source Code is in the Public Domain per: http://litesoft.org/License.txt
package org.litesoft.ui.scanner;

public interface BarcodeQuantityReactor
{
    public Integer getSetQuantity();

    /**
     * Called by Logic Object to indicate a new barcode & quantity pair to be processed.
     * <p/>
     * If the Barcode and quantity are "reasonable" then they are passed to the View, which in
     * turn will call back to either the "setErrors" or the "ok".
     */
    public void incrementOrSetQuantity( String pBarcode, boolean pAdd, int pQuantity );

    /**
     * Called by the Screen/View to indicate that the values passed from above are unacceptable
     */
    public void setErrors( String pErrorBarcode, String pErrorQuantity );

    /**
     * Called by the Screen/View to indicate that the values passed from above acceptable
     */
    public void ok();
}