com.julienviet.reactivex.pgclient.PgCursor Maven / Gradle / Ivy
/*
* 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 com.julienviet.reactivex.pgclient;
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;
/**
* A cursor that reads progressively the rows from Postgres, it is usefull for reading very large result.
*
*
* NOTE: This class has been automatically generated from the {@link com.julienviet.pgclient.PgCursor original} non RX-ified interface using Vert.x codegen.
*/
@io.vertx.lang.reactivex.RxGen(com.julienviet.pgclient.PgCursor.class)
public class PgCursor {
public static final io.vertx.lang.reactivex.TypeArg __TYPE_ARG = new io.vertx.lang.reactivex.TypeArg<>(
obj -> new PgCursor((com.julienviet.pgclient.PgCursor) obj),
PgCursor::getDelegate
);
private final com.julienviet.pgclient.PgCursor delegate;
public PgCursor(com.julienviet.pgclient.PgCursor delegate) {
this.delegate = delegate;
}
public com.julienviet.pgclient.PgCursor getDelegate() {
return delegate;
}
/**
* Read rows from the cursor, the result is provided asynchronously to the handler.
* @param count the amount of rows to read
* @param handler the handler for the result
*/
public void read(int count, Handler>> handler) {
delegate.read(count, new Handler>>() {
public void handle(AsyncResult> ar) {
if (ar.succeeded()) {
handler.handle(io.vertx.core.Future.succeededFuture(PgResult.newInstance(ar.result(), com.julienviet.reactivex.pgclient.Row.__TYPE_ARG)));
} else {
handler.handle(io.vertx.core.Future.failedFuture(ar.cause()));
}
}
});
}
/**
* Read rows from the cursor, the result is provided asynchronously to the handler.
* @param count the amount of rows to read
* @return
*/
public Single> rxRead(int count) {
return new io.vertx.reactivex.core.impl.AsyncResultSingle>(handler -> {
read(count, handler);
});
}
/**
* Returns true when the cursor has results in progress and the should be called to retrieve
* them.
* @return whether the cursor has more results,
*/
public boolean hasMore() {
boolean ret = delegate.hasMore();
return ret;
}
/**
* Release the cursor.
*
* It should be called for prepared queries executed with a fetch size.
*/
public void close() {
delegate.close();
}
/**
* Like {@link com.julienviet.reactivex.pgclient.PgCursor#close} but with a completionHandler called when the cursor has been released.
* @param completionHandler
*/
public void close(Handler> completionHandler) {
delegate.close(completionHandler);
}
/**
* Like {@link com.julienviet.reactivex.pgclient.PgCursor#close} but with a completionHandler called when the cursor has been released.
* @return
*/
public Completable rxClose() {
return new io.vertx.reactivex.core.impl.AsyncResultCompletable(handler -> {
close(handler);
});
}
public static PgCursor newInstance(com.julienviet.pgclient.PgCursor arg) {
return arg != null ? new PgCursor(arg) : null;
}
}