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Java example source code file (

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Java - Java tags/keywords

checkedprovider, exception

The Java example source code

 * Copyright (C) 2007 Google 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
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * See the License for the specific language governing permissions and
 * limitations under the License.


 * Alternative to the Guice {@link} that throws
 * a checked Exception. Users may not inject {@code T} directly.
 * <p>This interface must be extended to use application-specific exception types.
 * Such subinterfaces may not define new methods, but may narrow the exception type.
 * <pre>
 * public interface RemoteProvider<T> extends CheckedProvider<T> { 
 *   T get() throws CustomExceptionOne, CustomExceptionTwo;
 * }
 * </pre>
 * <p>When this type is bound using {@link ThrowingProviderBinder}, the value returned
 * or exception thrown by {@link #get} will be scoped. As a consequence, {@link #get}
 * will invoked at most once within each scope.
 * @since 3.0
public interface CheckedProvider<T> {
  T get() throws Exception;

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