Example usage for io.vertx.sqlclient Pool begin

Introduction

In this page you can find the example usage for io.vertx.sqlclient Pool begin.

Prototype

void begin(Handler<AsyncResult<Transaction>> handler);

Source Link

Document

Borrow a connection from the pool and begin a transaction, the underlying connection will be returned to the pool when the transaction ends.

Usage

From source file:examples.SqlClientExamples.java

License:Apache License

public void transaction03(Pool pool) {

    // Acquire a transaction and begin the transaction
    pool.begin(res -> {
        if (res.succeeded()) {

            // Get the transaction
            Transaction tx = res.result();

            // Various statements
            tx.query("INSERT INTO Users (first_name,last_name) VALUES ('Julien','Viet')", ar1 -> {
                if (ar1.succeeded()) {
                    tx.query("INSERT INTO Users (first_name,last_name) VALUES ('Emad','Alblueshi')", ar2 -> {
                        if (ar2.succeeded()) {
                            // Commit the transaction
                            // the connection will automatically return to the pool
                            tx.commit(ar3 -> {
                                if (ar3.succeeded()) {
                                    System.out.println("Transaction succeeded");
                                } else {
                                    System.out.println("Transaction failed " + ar3.cause().getMessage());
                                }/* w ww.  j av a 2  s.  c om*/
                            });
                        }
                    });
                } else {
                    // No need to close connection as transaction will abort and be returned to the pool
                }
            });
        }
    });
}

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