/*
* 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;
}
}