io.vertx.oracleclient.impl.commands.OracleCursorFetchCommand Maven / Gradle / Ivy
/*
* Copyright (c) 2011-2023 Contributors to the Eclipse Foundation
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
* which is available at https://www.apache.org/licenses/LICENSE-2.0.
*
* SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
*/
package io.vertx.oracleclient.impl.commands;
import io.vertx.core.Future;
import io.vertx.core.impl.ContextInternal;
import io.vertx.oracleclient.impl.RowReader;
import io.vertx.sqlclient.impl.QueryResultHandler;
import io.vertx.sqlclient.impl.command.ExtendedQueryCommand;
import oracle.jdbc.OracleConnection;
public class OracleCursorFetchCommand extends OracleCommand {
private final QueryResultHandler resultHandler;
private final int fetch;
private final RowReader rowReader;
private OracleCursorFetchCommand(OracleConnection oracleConnection, ContextInternal connectionContext, ExtendedQueryCommand cmd, RowReader rowReader) {
super(oracleConnection, connectionContext);
resultHandler = cmd.resultHandler();
fetch = cmd.fetch();
this.rowReader = rowReader;
}
public static OracleCursorFetchCommand create(OracleConnection oracleConnection, ContextInternal connectionContext, ExtendedQueryCommand cmd, RowReader rowReader) {
return new OracleCursorFetchCommand<>(oracleConnection, connectionContext, cmd, rowReader);
}
@Override
protected Future execute() {
return rowReader.read(fetch).compose(oracleResponse -> {
oracleResponse.handle(resultHandler);
return rowReader.hasMore();
});
}
}