arangodb/Documentation/Books/Drivers/Java/Reference/Database/Transactions.md

Transactions

This function implements the HTTP API for transactions.

ArangoDatabase.transaction

ArangoDatabase.transaction(String action, Class<T> type, TransactionOptions options) : T

Performs a server-side transaction and returns its return value.

Arguments

• action: String

  A String evaluating to a JavaScript function to be executed on the server.

• type: Class

  The type of the result (POJO class, VPackSlice or String for Json)

• options: TransactionOptions

  Additional transaction options

Examples

ArangoDB arango = new ArangoDB.Builder().build();
ArangoDatabase db = arango.db("myDB");
String action = "function (params) {"
                + "const db = require('@arangodb').db;"
                + "return db._query('FOR i IN test RETURN i._key').toArray();"
              + "}";
String[] keys = arango.db().transaction(action, String[].class, new TransactionOptions());