/*
* #%L
* carewebframework
* %%
* Copyright (C) 2008 - 2016 Regenstrief Institute, Inc.
* %%
* 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.
*
* This Source Code Form is also subject to the terms of the Health-Related
* Additional Disclaimer of Warranty and Limitation of Liability available at
*
* http://www.carewebframework.org/licensing/disclaimer.
*
* #L%
*/
package org.carewebframework.api.property;
/**
* Generic interface for reading property values from an arbitrary source.
*/
public interface IPropertyProvider {
/**
* Returns a property value as a string.
*
* @param key Name of the property whose value is sought.
* @return The property's value, or null if not found.
*/
String getProperty(String key);
/**
* Returns true if the property exists.
*
* @param key The property name.
* @return True if the property exists.
*/
boolean hasProperty(String key);
}