// ----------------------------------------------------------------------------
// Copyright 2007-2017, GeoTelematic Solutions, Inc.
// All rights reserved
// ----------------------------------------------------------------------------
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// 
// http://www.apache.org/licenses/LICENSE-2.0
// 
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// ----------------------------------------------------------------------------
// Description:
//  "getValue" interface
// ----------------------------------------------------------------------------
// Change History:
//  2017/01/25  Martin D. Flynn
//     -Initial release
// ----------------------------------------------------------------------------
package org.opengts.util;

public interface GetValue
{

    /**
    *** Gets a value from a property hash or Object
    *** @param key  The String key
    *** @param arg  An optional pargument/parameter
    *** @param dft  The default value to return if the key was not found
    *** @return The Object matching the specified key, or null if not found
    **/
    public Object getValue(String key, String arg, Object dft);

}