System.out.println("key '" + key + "' doesn't exist."); } else { if (kv.version() > lastVersion) { if (kv.isNumber()) { System.out.println("value = " + kv.numberValue()); } else { System.out.println("value = " + new String(ByteBufUtil.getBytes(kv.value()), UTF_8)); lastVersion = kv.version();
public PutResultImpl<K, V> prevKv(KeyValue<K, V> kv) { if (null != prevKv) { prevKv.close(); } prevKv = kv; return this; }
default CompletableFuture<V> delete(K pKey, K lKey) { return delete(pKey, lKey, Options.deleteAndGet()) .thenApply(result -> { try { List<KeyValue<K, V>> prevKvs = result.prevKvs(); if (prevKvs.isEmpty()) { return null; } else { return retain(prevKvs.get(0).value()); } } finally { result.close(); } }); }
default CompletableFuture<Long> getNumber(K pKey, K lKey) { RangeOption<K> option = opFactory().optionFactory().newRangeOption().build(); return get(pKey, lKey, option) .thenCompose(result -> { try { if (result.count() == 0) { return FutureUtils.value(null); } else { KeyValue<K, V> kv = result.kvs().get(0); if (kv.isNumber()) { return FutureUtils.value(kv.numberValue()); } else { return FutureUtils.exception(new KvApiException( Code.ILLEGAL_OP, "Key (" + pKey + ", " + lKey + ") doesn't have any number value")); } } } finally { result.close(); } }) .whenComplete((value, cause) -> option.close()); }
Long getNumber(K key) { try (RangeOp<K, V> op = opFactory.newRange( key, opFactory.optionFactory().newRangeOption() .limit(1) .build())) { try (RangeResult<K, V> result = range(op)) { if (Code.OK != result.code()) { throw new MVCCStoreException(result.code(), "Failed to retrieve key from store " + name + " : code = " + result.code()); } if (result.count() <= 0) { return null; } else { return result.kvs().get(0).numberValue(); } } } }
default CompletableFuture<V> delete(K key) { return delete(key, Options.deleteAndGet()) .thenApply(result -> { try { List<KeyValue<K, V>> prevKvs = result.prevKvs(); if (prevKvs.isEmpty()) { return null; } else { return retain(prevKvs.get(0).value()); } } finally { result.close(); } }); }
default CompletableFuture<Long> getNumber(K key) { RangeOption<K> option = opFactory().optionFactory().newRangeOption().build(); return get(key, option) .thenCompose(result -> { try { if (result.count() == 0) { return FutureUtils.value(null); } else { KeyValue<K, V> kv = result.kvs().get(0); if (kv.isNumber()) { return FutureUtils.value(kv.numberValue()); } else { return FutureUtils.exception(new KvApiException( Code.ILLEGAL_OP, "Key (" + key + ") doesn't have any number value")); } } } finally { result.close(); } }) .whenComplete((value, cause) -> option.close()); }
default CompletableFuture<V> get(K key) { RangeOption<K> option = opFactory().optionFactory().newRangeOption().build(); return get(key, option) .thenApply(result -> { try { if (result.count() == 0) { return null; } else { return retain(result.kvs().get(0).value()); } } finally { result.close(); } }) .whenComplete((value, cause) -> option.close()); }
@Override protected void reset() { if (null != prevKv) { prevKv.close(); prevKv = null; } super.reset(); }
default CompletableFuture<V> get(K pKey, K lKey) { RangeOption<K> option = opFactory().optionFactory().newRangeOption().build(); return get(pKey, lKey, option) .thenApply(result -> { try { if (result.count() == 0) { return null; } else { return retain(result.kvs().get(0).value()); } } finally { result.close(); } }) .whenComplete((value, cause) -> option.close()); }
@Override default CompletableFuture<V> delete(K k) { DeleteOp<K, V> op = getOpFactory().newDelete( k, Options.deleteAndGet()); return delete(op).thenCompose(result -> { try { if (Code.OK == result.code()) { List<KeyValue<K, V>> prevKvs = result.prevKvs(); if (prevKvs.isEmpty()) { return FutureUtils.value(null); } else { return FutureUtils.value(prevKvs.get(0).value()); } } else { return failWithCode(result.code(), "Fail to delete key " + k + " from store " + name()); } } finally { result.close(); } }); }
@Override default CompletableFuture<V> get(K key) { RangeOp<K, V> op = getOpFactory().newRange( key, Options.get()); return range(op).thenCompose(result -> { try { if (Code.OK == result.code()) { if (result.kvs().isEmpty()) { return FutureUtils.value(null); } else { return FutureUtils.value(retain(result.kvs().get(0).value())); } } else { return failWithCode(result.code(), "Failed to retrieve key " + key + " from store " + name()); } } finally { result.close(); } }); }
@Override public synchronized V get(K key) { try (RangeOp<K, V> op = opFactory.newRange( key, opFactory.optionFactory().newRangeOption() .limit(1) .build())) { try (RangeResult<K, V> result = range(op)) { if (Code.OK != result.code()) { throw new MVCCStoreException(result.code(), "Failed to retrieve key from store " + name + " : code = " + result.code()); } if (result.count() <= 0) { return null; } else { return retain(result.kvs().get(0).value()); } } } }
"Key " + k + " not found when putIfAbsent failed at store " + name()); } else { return FutureUtils.value(retain(rangeResult.kvs().get(0).value()));
"Key " + lKey + " not found when putIfAbsent failed")); } else { return FutureUtils.value(retain(rangeResult.kvs().get(0).value()));
"Key " + lKey + " not found when putIfAbsent failed")); } else { return FutureUtils.value(retain(rangeResult.kvs().get(0).value()));