/*
 * 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.sqlclient;

import io.vertx.reactivex.RxHelper;
import io.vertx.reactivex.ObservableHelper;
import io.vertx.reactivex.FlowableHelper;
import io.vertx.reactivex.impl.AsyncResultMaybe;
import io.vertx.reactivex.impl.AsyncResultSingle;
import io.vertx.reactivex.impl.AsyncResultCompletable;
import io.vertx.reactivex.WriteStreamObserver;
import io.vertx.reactivex.WriteStreamSubscriber;
import java.util.Map;
import java.util.Set;
import java.util.List;
import java.util.Iterator;
import java.util.function.Function;
import java.util.stream.Collectors;
import io.vertx.core.Handler;
import io.vertx.core.AsyncResult;
import io.vertx.core.json.JsonObject;
import io.vertx.core.json.JsonArray;
import io.vertx.lang.rx.RxGen;
import io.vertx.lang.rx.TypeArg;
import io.vertx.lang.rx.MappingIterator;

A cursor that reads progressively rows from the database, it is useful for reading very large result sets.

NOTE: This class has been automatically generated from the original non RX-ified interface using Vert.x codegen.
/** * A cursor that reads progressively rows from the database, it is useful for reading very large result sets. * * <p/> * NOTE: This class has been automatically generated from the {@link io.vertx.sqlclient.Cursor original} non RX-ified interface using Vert.x codegen. */
@RxGen(io.vertx.sqlclient.Cursor.class) public class Cursor { @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; Cursor that = (Cursor) o; return delegate.equals(that.delegate); } @Override public int hashCode() { return delegate.hashCode(); } public static final TypeArg<Cursor> __TYPE_ARG = new TypeArg<>( obj -> new Cursor((io.vertx.sqlclient.Cursor) obj), Cursor::getDelegate ); private final io.vertx.sqlclient.Cursor delegate; public Cursor(io.vertx.sqlclient.Cursor delegate) { this.delegate = delegate; } public Cursor(Object delegate) { this.delegate = (io.vertx.sqlclient.Cursor)delegate; } public io.vertx.sqlclient.Cursor getDelegate() { return delegate; }
Read rows from the cursor, the result is provided asynchronously to the handler.
Params:
  • count – the amount of rows to read
  • handler – the handler for the result
/** * Read rows from the cursor, the result is provided asynchronously to the <code>handler</code>. * @param count the amount of rows to read * @param handler the handler for the result */
public void read(int count, Handler<AsyncResult<io.vertx.reactivex.sqlclient.RowSet<io.vertx.reactivex.sqlclient.Row>>> handler) { delegate.read(count, new Handler<AsyncResult<io.vertx.sqlclient.RowSet<io.vertx.sqlclient.Row>>>() { public void handle(AsyncResult<io.vertx.sqlclient.RowSet<io.vertx.sqlclient.Row>> ar) { if (ar.succeeded()) { handler.handle(io.vertx.core.Future.succeededFuture(io.vertx.reactivex.sqlclient.RowSet.newInstance((io.vertx.sqlclient.RowSet)ar.result(), new TypeArg<io.vertx.reactivex.sqlclient.Row>(o0 -> io.vertx.reactivex.sqlclient.Row.newInstance((io.vertx.sqlclient.Row)o0), o0 -> o0.getDelegate())))); } else { handler.handle(io.vertx.core.Future.failedFuture(ar.cause())); } } }); }
Read rows from the cursor, the result is provided asynchronously to the handler.
Params:
  • count – the amount of rows to read
/** * Read rows from the cursor, the result is provided asynchronously to the <code>handler</code>. * @param count the amount of rows to read */
public void read(int count) { read(count, ar -> { }); }
Read rows from the cursor, the result is provided asynchronously to the handler.
Params:
  • count – the amount of rows to read
Returns:
/** * Read rows from the cursor, the result is provided asynchronously to the <code>handler</code>. * @param count the amount of rows to read * @return */
public io.reactivex.Single<io.vertx.reactivex.sqlclient.RowSet<io.vertx.reactivex.sqlclient.Row>> rxRead(int count) { return AsyncResultSingle.toSingle($handler -> { read(count, $handler); }); }
Returns true when the cursor has results in progress and the read should be called to retrieve them.
Returns:whether the cursor has more results,
/** * Returns <code>true</code> when the cursor has results in progress and the {@link io.vertx.reactivex.sqlclient.Cursor#read} should be called to retrieve * them. * @return whether the cursor has more results, */
public boolean hasMore() { boolean ret = delegate.hasMore(); return ret; }
Like close but with a completionHandler called when the cursor has been released.
Params:
  • completionHandler –
/** * Like {@link io.vertx.reactivex.sqlclient.Cursor#close} but with a <code>completionHandler</code> called when the cursor has been released. * @param completionHandler */
public void close(Handler<AsyncResult<Void>> completionHandler) { delegate.close(completionHandler); }
Like close but with a completionHandler called when the cursor has been released.
/** * Like {@link io.vertx.reactivex.sqlclient.Cursor#close} but with a <code>completionHandler</code> called when the cursor has been released. */
public void close() { close(ar -> { }); }
Like close but with a completionHandler called when the cursor has been released.
Returns:
/** * Like {@link io.vertx.reactivex.sqlclient.Cursor#close} but with a <code>completionHandler</code> called when the cursor has been released. * @return */
public io.reactivex.Completable rxClose() { return AsyncResultCompletable.toCompletable($handler -> { close($handler); }); }
Returns:whether the cursor is closed
/** * @return whether the cursor is closed */
public boolean isClosed() { boolean ret = delegate.isClosed(); return ret; } public static Cursor newInstance(io.vertx.sqlclient.Cursor arg) { return arg != null ? new Cursor(arg) : null; } }