/*
 * Copyright 2014 Red Hat, Inc.
 *
 * Red Hat 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 io.vertx.reactivex.core.shareddata;

import java.util.Map;
import io.reactivex.Observable;
import io.reactivex.Flowable;
import io.reactivex.Single;
import io.reactivex.Completable;
import io.reactivex.Maybe;
import io.vertx.core.AsyncResult;
import io.vertx.core.Handler;

An asynchronous counter that can be used to across the cluster to maintain a consistent count.

NOTE: This class has been automatically generated from the original non RX-ified interface using Vert.x codegen.
/** * An asynchronous counter that can be used to across the cluster to maintain a consistent count. * <p> * * <p/> * NOTE: This class has been automatically generated from the {@link io.vertx.core.shareddata.Counter original} non RX-ified interface using Vert.x codegen. */
@io.vertx.lang.rx.RxGen(io.vertx.core.shareddata.Counter.class) public class Counter { @Override public String toString() { return delegate.toString(); } @Override public boolean equals(Object o) { if (this == o) return true; if (o == null || getClass() != o.getClass()) return false; Counter that = (Counter) o; return delegate.equals(that.delegate); } @Override public int hashCode() { return delegate.hashCode(); } public static final io.vertx.lang.rx.TypeArg<Counter> __TYPE_ARG = new io.vertx.lang.rx.TypeArg<>( obj -> new Counter((io.vertx.core.shareddata.Counter) obj), Counter::getDelegate ); private final io.vertx.core.shareddata.Counter delegate; public Counter(io.vertx.core.shareddata.Counter delegate) { this.delegate = delegate; } public io.vertx.core.shareddata.Counter getDelegate() { return delegate; }
Get the current value of the counter
Params:
  • resultHandler – handler which will be passed the value
/** * Get the current value of the counter * @param resultHandler handler which will be passed the value */
public void get(Handler<AsyncResult<Long>> resultHandler) { delegate.get(resultHandler); }
Get the current value of the counter
Returns:
/** * Get the current value of the counter * @return */
public Single<Long> rxGet() { return io.vertx.reactivex.impl.AsyncResultSingle.toSingle(handler -> { get(handler); }); }
Increment the counter atomically and return the new count
Params:
  • resultHandler – handler which will be passed the value
/** * Increment the counter atomically and return the new count * @param resultHandler handler which will be passed the value */
public void incrementAndGet(Handler<AsyncResult<Long>> resultHandler) { delegate.incrementAndGet(resultHandler); }
Increment the counter atomically and return the new count
Returns:
/** * Increment the counter atomically and return the new count * @return */
public Single<Long> rxIncrementAndGet() { return io.vertx.reactivex.impl.AsyncResultSingle.toSingle(handler -> { incrementAndGet(handler); }); }
Increment the counter atomically and return the value before the increment.
Params:
  • resultHandler – handler which will be passed the value
/** * Increment the counter atomically and return the value before the increment. * @param resultHandler handler which will be passed the value */
public void getAndIncrement(Handler<AsyncResult<Long>> resultHandler) { delegate.getAndIncrement(resultHandler); }
Increment the counter atomically and return the value before the increment.
Returns:
/** * Increment the counter atomically and return the value before the increment. * @return */
public Single<Long> rxGetAndIncrement() { return io.vertx.reactivex.impl.AsyncResultSingle.toSingle(handler -> { getAndIncrement(handler); }); }
Decrement the counter atomically and return the new count
Params:
  • resultHandler – handler which will be passed the value
/** * Decrement the counter atomically and return the new count * @param resultHandler handler which will be passed the value */
public void decrementAndGet(Handler<AsyncResult<Long>> resultHandler) { delegate.decrementAndGet(resultHandler); }
Decrement the counter atomically and return the new count
Returns:
/** * Decrement the counter atomically and return the new count * @return */
public Single<Long> rxDecrementAndGet() { return io.vertx.reactivex.impl.AsyncResultSingle.toSingle(handler -> { decrementAndGet(handler); }); }
Add the value to the counter atomically and return the new count
Params:
  • value – the value to add
  • resultHandler – handler which will be passed the value
/** * Add the value to the counter atomically and return the new count * @param value the value to add * @param resultHandler handler which will be passed the value */
public void addAndGet(long value, Handler<AsyncResult<Long>> resultHandler) { delegate.addAndGet(value, resultHandler); }
Add the value to the counter atomically and return the new count
Params:
  • value – the value to add
Returns:
/** * Add the value to the counter atomically and return the new count * @param value the value to add * @return */
public Single<Long> rxAddAndGet(long value) { return io.vertx.reactivex.impl.AsyncResultSingle.toSingle(handler -> { addAndGet(value, handler); }); }
Add the value to the counter atomically and return the value before the add
Params:
  • value – the value to add
  • resultHandler – handler which will be passed the value
/** * Add the value to the counter atomically and return the value before the add * @param value the value to add * @param resultHandler handler which will be passed the value */
public void getAndAdd(long value, Handler<AsyncResult<Long>> resultHandler) { delegate.getAndAdd(value, resultHandler); }
Add the value to the counter atomically and return the value before the add
Params:
  • value – the value to add
Returns:
/** * Add the value to the counter atomically and return the value before the add * @param value the value to add * @return */
public Single<Long> rxGetAndAdd(long value) { return io.vertx.reactivex.impl.AsyncResultSingle.toSingle(handler -> { getAndAdd(value, handler); }); }
Set the counter to the specified value only if the current value is the expectec value. This happens atomically.
Params:
  • expected – the expected value
  • value – the new value
  • resultHandler – the handler will be passed true on success
/** * Set the counter to the specified value only if the current value is the expectec value. This happens * atomically. * @param expected the expected value * @param value the new value * @param resultHandler the handler will be passed true on success */
public void compareAndSet(long expected, long value, Handler<AsyncResult<Boolean>> resultHandler) { delegate.compareAndSet(expected, value, resultHandler); }
Set the counter to the specified value only if the current value is the expectec value. This happens atomically.
Params:
  • expected – the expected value
  • value – the new value
Returns:
/** * Set the counter to the specified value only if the current value is the expectec value. This happens * atomically. * @param expected the expected value * @param value the new value * @return */
public Single<Boolean> rxCompareAndSet(long expected, long value) { return io.vertx.reactivex.impl.AsyncResultSingle.toSingle(handler -> { compareAndSet(expected, value, handler); }); } public static Counter newInstance(io.vertx.core.shareddata.Counter arg) { return arg != null ? new Counter(arg) : null; } }