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jeremybenn |
/*
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GNU Classpath.
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GNU Classpath is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU Classpath is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU Classpath; see the file COPYING. If not, write to the
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Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA.
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Linking this library statically or dynamically with other modules is
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making a combined work based on this library. Thus, the terms and
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conditions of the GNU General Public License cover the whole
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combination.
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As a special exception, the copyright holders of this library give you
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permission to link this library with independent modules to produce an
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executable, regardless of the license terms of these independent
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modules, and to copy and distribute the resulting executable under
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terms of your choice, provided that you also meet, for each linked
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independent module, the terms and conditions of the license of that
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module. An independent module is a module which is not derived from
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or based on this library. If you modify this library, you may extend
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this exception to your version of the library, but you are not
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obligated to do so. If you do not wish to do so, delete this
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exception statement from your version. */
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package javax.sound.sampled;
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/**
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* An EnumControl is a Control which can take one of a specified set of
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* values.
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* @since 1.3
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*/
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public abstract class EnumControl extends Control
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{
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/**
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* This Type describes an EnumControl.
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* @since 1.3
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*/
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public static class Type extends Control.Type
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{
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/** This describes an enum control used for reverb. */
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public static final Type REVERB = new Type("Reverb");
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/**
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* Create a new Type given its name.
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* @param name the name of the type
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*/
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protected Type(String name)
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{
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super(name);
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}
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}
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private Object[] values;
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private Object value;
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/**
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* Create a new enumerated control given its Type, the range of valid
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* values, and its initial value.
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* @param type the type
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* @param values the valid values
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* @param val the initial value
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*/
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protected EnumControl(Type type, Object[] values, Object val)
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{
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super(type);
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// FIXME: error checking: values.length>0, val in values... ?
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// FIXME: clone here?
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this.values = values;
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this.value = val;
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}
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/**
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* Return the current value of this control.
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*/
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public Object getValue()
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{
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return value;
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}
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/**
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* Return the valid values for this control.
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*/
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public Object[] getValues()
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{
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// FIXME: clone here?
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return values;
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}
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/**
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* Set the value of this control. If the indicated value is not among
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* the valid values, this method will throw an IllegalArgumentException.
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* @param value the new value
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* @throws IllegalArgumentException if the new value is invalid
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*/
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public void setValue(Object value)
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{
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for (int i = 0; i < values.length; ++i)
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{
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if (! values[i].equals(value))
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throw new IllegalArgumentException("value not supported");
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}
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this.value = value;
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}
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/**
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* Return a string describing this control.
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*/
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public String toString()
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{
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return super.toString() + ": " + value;
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}
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}
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