/*
 * @(#)FormattableFlags.java	1.1 04/04/21
 *
 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package java.util;

/**
 * FomattableFlags are passed to the {@link Formattable#formatTo
 * Formattable.formatTo()} method and modify the output format for {@linkplain
 * Formattable Formattables}.  Implementations of {@link Formattable} are
 * responsible for interpreting and validating any flags.
 *
 * @version 	1.1, 04/21/04
 * @since  1.5
 */
public class FormattableFlags {

    // Explicit instantiation of this class is prohibited.
    private FormattableFlags() {}

    /**
     * Left-justifies the output.  Spaces (<tt>'\u0020'</tt>) will be added
     * at the end of the converted value as required to fill the minimum width
     * of the field.  If this flag is not set then the output will be
     * right-justified.
     *
     * <p> This flag corresponds to <tt>'-'</tt> (<tt>'\u002d'</tt>) in
     * the format specifier.
     */
    public static final int LEFT_JUSTIFY = 1<<0; // '-'

    /**
     * Converts the output to upper case according to the rules of the
     * {@linkplain java.util.Locale locale} given during creation of the
     * <tt>formatter</tt> argument of the {@link Formattable#formatTo
     * formatTo()} method.  The output should be equivalent the following
     * invocation of {@link String#toUpperCase(java.util.Locale)}
     *
     * <pre>
     *     out.toUpperCase() </pre>
     *
     * <p> This flag corresponds to <tt>'^'</tt> (<tt>'\u005e'</tt>) in
     * the format specifier.
     */
    public static final int UPPERCASE = 1<<1;    // '^'

    /**
     * Requires the output to use an alternate form.  The definition of the
     * form is specified by the <tt>Formattable</tt>.
     *
     * <p> This flag corresponds to <tt>'#'</tt> (<tt>'\u0023'</tt>) in
     * the format specifier.
     */
    public static final int ALTERNATE = 1<<2;    // '#'
}