| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.ignite.table; |
| |
| import java.io.Serializable; |
| import java.util.Collection; |
| import java.util.Map; |
| import java.util.concurrent.CompletableFuture; |
| import org.apache.ignite.table.mapper.Mappers; |
| import org.apache.ignite.tx.Transaction; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| /** |
| * Key-Value view of table provides methods to access table records. |
| * |
| * @param <K> Mapped key type. |
| * @param <V> Mapped value type. |
| * @apiNote 'Key/value class field' >-< 'table column' mapping laid down in implementation. |
| * @see Mappers |
| */ |
| public interface KeyValueView<K, V> { |
| /** |
| * Gets a value associated with the given key. |
| * |
| * @param key A key which associated the value is to be returned. |
| * The key cannot be {@code null}. |
| * @return Value or {@code null}, if it does not exist. |
| */ |
| V get(@NotNull K key); |
| |
| /** |
| * Asynchronously gets a value associated with the given key. |
| * |
| * @param key A key which associated the value is to be returned. |
| * The key cannot be {@code null}. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<V> getAsync(@NotNull K key); |
| |
| /** |
| * Get values associated with given keys. |
| * |
| * @param keys Keys which associated values are to be returned. |
| * The keys cannot be {@code null}. |
| * @return Values associated with given keys. |
| */ |
| Map<K, V> getAll(@NotNull Collection<K> keys); |
| |
| /** |
| * Get values associated with given keys. |
| * |
| * @param keys Keys whose associated values are to be returned. |
| * The keys cannot be {@code null}. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Map<K, V>> getAllAsync(@NotNull Collection<K> keys); |
| |
| /** |
| * Determines if the table contains an entry for the specified key. |
| * |
| * @param key A key which presence is to be tested. |
| * The key cannot be {@code null}. |
| * @return {@code True} if a value exists for the specified key, {@code false} otherwise. |
| */ |
| boolean contains(@NotNull K key); |
| |
| /** |
| * Determines if the table contains an entry for the specified key. |
| * |
| * @param key A key which presence is to be tested. |
| * The key cannot be {@code null}. |
| * @return Future representing pending completion of the operation. |
| */ |
| CompletableFuture<Boolean> containsAsync(@NotNull K key); |
| |
| /** |
| * Puts value associated with given key into the table. |
| * |
| * @param key A key with which the specified value is to be associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| */ |
| void put(@NotNull K key, V val); |
| |
| /** |
| * Asynchronously puts value associated with given key into the table. |
| * |
| * @param key A key with which the specified value is to be associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Void> putAsync(@NotNull K key, V val); |
| |
| /** |
| * Put associated key-value pairs. |
| * |
| * @param pairs Key-value pairs. |
| * The pairs cannot be {@code null}. |
| */ |
| void putAll(@NotNull Map<K, V> pairs); |
| |
| /** |
| * Asynchronously put associated key-value pairs. |
| * |
| * @param pairs Key-value pairs. |
| * The pairs cannot be {@code null}. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Void> putAllAsync(@NotNull Map<K, V> pairs); |
| |
| /** |
| * Puts new or replaces existed value associated with given key into the table. |
| * |
| * @param key A key with which the specified value is to be associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return Replaced value or {@code null}, if not existed. |
| */ |
| V getAndPut(@NotNull K key, V val); |
| |
| /** |
| * Asynchronously puts new or replaces existed value associated with given key into the table. |
| * |
| * @param key A key with which the specified value is to be associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<V> getAndPutAsync(@NotNull K key, V val); |
| |
| /** |
| * Puts value associated with given key into the table if not exists. |
| * |
| * @param key A key with which the specified value is to be associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return {@code True} if successful, {@code false} otherwise. |
| */ |
| boolean putIfAbsent(@NotNull K key, @NotNull V val); |
| |
| /** |
| * Asynchronously puts value associated with given key into the table if not exists. |
| * |
| * @param key Key with which the specified value is to be associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Boolean> putIfAbsentAsync(@NotNull K key, V val); |
| |
| /** |
| * Removes value associated with given key from the table. |
| * |
| * @param key A key which mapping is to be removed from the table. |
| * The key cannot be {@code null}. |
| * @return {@code True} if a value associated with the specified key was successfully removed, {@code false} otherwise. |
| */ |
| boolean remove(@NotNull K key); |
| |
| /** |
| * Asynchronously removes value associated with given key from the table. |
| * |
| * @param key A key which mapping is to be removed from the table. |
| * The key cannot be {@code null}. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Boolean> removeAsync(@NotNull K key); |
| |
| /** |
| * Removes an expected value associated with the given key from the table. |
| * |
| * @param key A key which associated value is to be removed from the table. |
| * The key cannot be {@code null}. |
| * @param val Expected value. The value cannot be {@code null}. |
| * @return {@code True} if the expected value for the specified key was successfully removed, {@code false} otherwise. |
| */ |
| boolean remove(@NotNull K key, @NotNull V val); |
| |
| /** |
| * Asynchronously removes expected value associated with given key from the table. |
| * |
| * @param key A key which associated the value is to be removed from the table. |
| * The key cannot be {@code null}. |
| * @param val Expected value. The value cannot be {@code null}. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Boolean> removeAsync(@NotNull K key, @NotNull V val); |
| |
| /** |
| * Remove values associated with given keys from the table. |
| * |
| * @param keys Keys which mapping is to be removed from the table. |
| * The keys cannot be {@code null}. |
| * @return Keys whose values were not existed. |
| */ |
| Collection<K> removeAll(@NotNull Collection<K> keys); |
| |
| /** |
| * Asynchronously remove values associated with given keys from the table. |
| * |
| * @param keys Keys which mapping is to be removed from the table. |
| * The keys cannot be {@code null}. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Collection<K>> removeAllAsync(@NotNull Collection<K> keys); |
| |
| /** |
| * Gets then removes value associated with given key from the table. |
| * |
| * @param key A key which associated value is to be removed from the table. |
| * The key cannot be {@code null}. |
| * @return Removed value or {@code null}, if not existed. |
| */ |
| V getAndRemove(@NotNull K key); |
| |
| /** |
| * Asynchronously gets then removes value associated with given key from the table. |
| * |
| * @param key A Key which mapping is to be removed from the table. |
| * The key cannot be {@code null}. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<V> getAndRemoveAsync(@NotNull K key); |
| |
| /** |
| * Replaces the value for a key only if exists. This is equivalent to |
| * <pre><code> |
| * if (cache.containsKey(key)) { |
| * cache.put(key, value); |
| * return true; |
| * } else { |
| * return false; |
| * }</code></pre> |
| * except that the action is performed atomically. |
| * |
| * @param key A key with which the specified value is associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return {@code True} if an old value was replaced, {@code false} otherwise. |
| */ |
| boolean replace(@NotNull K key, V val); |
| |
| /** |
| * Asynchronously replaces the value for a key only if exists. |
| * See {@link #replace(Object, Object)}. |
| * |
| * @param key A key with which the specified value is associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Boolean> replaceAsync(@NotNull K key, V val); |
| |
| /** |
| * Replaces the expected value for a key. This is equivalent to |
| * <pre><code> |
| * if (cache.get(key) == oldVal) { |
| * cache.put(key, newVal); |
| * return true; |
| * } else { |
| * return false; |
| * }</code></pre> |
| * except that the action is performed atomically. |
| * |
| * @param key A key with which the specified value is associated. |
| * The key cannot be {@code null}. |
| * @param oldVal Expected value associated with the specified key. |
| * @param newVal Value to be associated with the specified key. |
| * @return {@code True} if an old value was replaced, {@code false} otherwise. |
| */ |
| boolean replace(@NotNull K key, V oldVal, V newVal); |
| |
| /** |
| * Asynchronously replaces the expected value for a key. |
| * See {@link #replace(Object, Object, Object)} |
| * |
| * @param key A key with which the specified value is associated. |
| * The key cannot be {@code null}. |
| * @param oldVal Expected value associated with the specified key. |
| * @param newVal Value to be associated with the specified key. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<Boolean> replaceAsync(@NotNull K key, V oldVal, V newVal); |
| |
| /** |
| * Replaces the value for a given key only if exists. This is equivalent to |
| * <pre><code> |
| * if (cache.containsKey(key)) { |
| * V oldValue = cache.get(key); |
| * cache.put(key, value); |
| * return oldValue; |
| * } else { |
| * return null; |
| * } |
| * </code></pre> |
| * except that the action is performed atomically. |
| * |
| * @param key A key with which the specified value is associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return Replaced value, or {@code null} if not existed. |
| */ |
| V getAndReplace(@NotNull K key, V val); |
| |
| /** |
| * Asynchronously replaces the value for a given key only if exists. |
| * See {@link #getAndReplace(Object, Object)} |
| * |
| * @param key A key with which the specified value is associated. |
| * The key cannot be {@code null}. |
| * @param val Value to be associated with the specified key. |
| * @return Future representing pending completion of the operation. |
| */ |
| @NotNull CompletableFuture<V> getAndReplaceAsync(@NotNull K key, V val); |
| |
| /** |
| * Executes invoke processor code against the value associated with the provided key. |
| * |
| * @param key A key associated with the value that invoke processor will be applied to. |
| * The key cannot be {@code null}. |
| * @param proc Invoke processor. |
| * @param args Optional invoke processor arguments. |
| * @param <R> Invoke processor result type. |
| * @return Result of the processing. |
| * @see InvokeProcessor |
| */ |
| <R extends Serializable> R invoke(@NotNull K key, InvokeProcessor<K, V, R> proc, Serializable... args); |
| |
| /** |
| * Asynchronously executes invoke processor code against the value associated with the provided key. |
| * |
| * @param key A key associated with the value that invoke processor will be applied to. |
| * The key cannot be {@code null}. |
| * @param proc Invoke processor. |
| * @param args Optional invoke processor arguments. |
| * @param <R> Invoke processor result type. |
| * @return Future representing pending completion of the operation. |
| * @see InvokeProcessor |
| */ |
| @NotNull <R extends Serializable> CompletableFuture<R> invokeAsync( |
| @NotNull K key, |
| InvokeProcessor<K, V, R> proc, |
| Serializable... args); |
| |
| /** |
| * Executes invoke processor code against values associated with the provided keys. |
| * |
| * @param <R> Invoke processor result type. |
| * @param keys Ordered collection of keys which values associated with should be processed. |
| * The keys cannot be {@code null}. |
| * @param proc Invoke processor. |
| * @param args Optional invoke processor arguments. |
| * @return Results of the processing. |
| * @see InvokeProcessor |
| */ |
| <R extends Serializable> Map<K, R> invokeAll( |
| @NotNull Collection<K> keys, |
| InvokeProcessor<K, V, R> proc, |
| Serializable... args); |
| |
| /** |
| * Asynchronously executes invoke processor code against values associated with the provided keys. |
| * |
| * @param <R> Invoke processor result type. |
| * @param keys Ordered collection of keys which values associated with should be processed. |
| * The keys cannot be {@code null}. |
| * @param proc Invoke processor. |
| * @param args Optional invoke processor arguments. |
| * @return Future representing pending completion of the operation. |
| * @see InvokeProcessor |
| */ |
| @NotNull <R extends Serializable> CompletableFuture<Map<K, R>> invokeAllAsync( |
| @NotNull Collection<K> keys, |
| InvokeProcessor<K, V, R> proc, |
| Serializable... args); |
| |
| /** |
| * Returns current transaction. |
| * |
| * @return Current transaction or null if the view is not enlisted in a transaction. |
| */ |
| @Nullable Transaction transaction(); |
| |
| /** |
| * Enslists a view into the transaction. |
| * |
| * @param tx The transaction. |
| * @return Transactional view. |
| */ |
| KeyValueView<K, V> withTransaction(Transaction tx); |
| } |