platform/util/src/com/intellij/openapi/util/NotNullComputable.java

/*
 * Copyright 2000-2013 JetBrains s.r.o.
 *
 * 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.
 */
package com.intellij.openapi.util;

import org.jetbrains.annotations.NotNull;

/**
 * @author Nikolay Matveev
 */
public interface NotNullComputable<T> extends Computable<T> {

  @Override
  @NotNull
  T compute();

  NotNullComputable<Boolean> TRUE = new NotNullComputable<Boolean>() {

    @NotNull
    @Override
    public Boolean compute() {
      return Boolean.TRUE;
    }
  };
}