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/*-
* ============LICENSE_START=======================================================
* Copyright (C) 2018 Ericsson. 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.
*
* SPDX-License-Identifier: Apache-2.0
* ============LICENSE_END=========================================================
*/
package org.onap.policy.common.parameters;
/**
* This interface is implemented by ONAP PF parameter classes so that they can be validated.
*
* @author Liam Fallon (liam.fallon@ericsson.com)
*/
public interface ParameterValidator {
/**
* Validate a parameter java bean, if the parameter bean is valid, an empty string is returned,
* otherwise the string gives details of the invalid parameters.
*
* @return the string with validation errors
*/
String validate();
}
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