54 lines
2.2 KiB
Java
54 lines
2.2 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* $Header:$
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*/
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package org.apache.beehive.controls.api.versioning;
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import java.lang.annotation.ElementType;
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import java.lang.annotation.Retention;
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import java.lang.annotation.RetentionPolicy;
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import java.lang.annotation.Target;
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/**
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* Specifies the maximum version of the control interface that this implementation
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* supports. Allowed on control implementations (interfaces annotated with
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* <sp>@ControlImplementation). This version requirement is enforced at compile time
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* of the implementation, and at runtime when the implementation is classloaded.
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*/
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@Retention(RetentionPolicy.RUNTIME)
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@Target({ElementType.TYPE})
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public @interface VersionSupported
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{
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/**
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* The major version of the control interface that this implementation
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* supports. Any version number less than or equal to this value will suffice,
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* implying that this constraint is only valid when backwards compatibility
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* is part of the contract when increasing the version number. Negative
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* values mean that any major version is acceptable (in which case this
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* annotation should probably just not be
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* present).
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*/
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int major();
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/**
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* The minor version of the control interface that this implementation
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* supports. Any version number less than or equal to this value will suffice.
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* Negative values mean that any minor version is acceptable (the default case).
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*/
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int minor() default -1;
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}
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