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Added example project, for now, only with posix scripts.
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‎examples/fbjava-example/README‎

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=================================
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Example project for FB/Java
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=================================
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Prerequisites
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=============
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Java SE Development Kit 8 (http://java.sun.com/javase/downloads/index.jsp) [may work with JRE]
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Apache Maven (http://maven.apache.org)
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Preparing
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=========
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Make sure JAVA_HOME is correctly defined and points to a Java of the same architecture (32 or 64
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bit) of Firebird.
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Set FIREBIRD environment variable.
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Set FBJAVA_ROOT environment variable.
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Set ISC_USER and ISC_PASSWORD.
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Go to this example's root directory.
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Run mvn package
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(If you're new to Maven, it's normal that it will start downloading a lot of files on the first run)
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Run util/createdb.{sh,bat} script.
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Optionally create a database named employee in PostgreSQL with user name postgres and password
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postgres.
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Open the postgres employee database, create this table and insert some records.
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create table employee (id integer, name varchar(60));
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Testing
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=======
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Connect to db.fdb. Some things to play with:
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-- Lets see what Java says about our OS name, directly calling a standard method:
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select get_system_property('os.name') from rdb$database;
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-- Lets call a method that we created:
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select regex_replace('foo', '123 foo 456', 'bar') from rdb$database;
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-- INSERT/UPDATE/DELETE on the employee table. All actions will be logged in db.log file.
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insert into employee values (1, 'Juliet Burke');
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insert into employee values (2, 'Kate Austen');
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insert into employee values (3, 'John Locke');
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-- This is dumb example, but you may use same concept to make cross database queries.
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select * from employee_local;
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-- This is same concept and implementation, but read data from the postgres database!
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select * from employee_pgsql;
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-- You can now open util/code.sql and see how the postgres query is created. Create another SP based
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-- on a Firebird database just replacing jdbc:postgresql:employee|postgres|postgres by
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-- jdbc:firebirdsql:database|user|password
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-- After change .java files, run mvn package and util/replace-jar.{sh,bat} script.
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-- Now you can do queries with multiple external datasources, of different DBMSs!
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select * from employee_local
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union all
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select * from employee_pgsql;
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select *
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from employee_local el
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join employee_pgsql ep
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on ep.id = el.id;
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insert into employee
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select * from employee_pgsql;

‎examples/fbjava-example/pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"
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>
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<modelVersion>4.0.0</modelVersion>
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<groupId>org.firebirdsql.fbjava</groupId>
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<artifactId>fbjava-example</artifactId>
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<packaging>jar</packaging>
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<version>1.0.0-alpha-1</version>
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<name>fbjava-example</name>
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<url></url>
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<properties>
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<fbjava.version>1.0.0-alpha-1</fbjava.version>
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<slf4j.version>1.7.13</slf4j.version>
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<logback.version>1.1.3</logback.version>
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<maven-assembly-plugin.version>2.2-beta-3</maven-assembly-plugin.version>
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<postgresql.version>8.3-603.jdbc4</postgresql.version>
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</properties>
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<repositories>
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<repository>
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<id>fbjava</id>
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<url>https://raw.githubusercontent.com/asfernandes/fbjava-maven/master/maven2</url>
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</repository>
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</repositories>
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<dependencies>
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<dependency>
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<groupId>org.firebirdsql.fbjava</groupId>
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<artifactId>fbjava</artifactId>
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<version>${fbjava.version}</version>
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<scope>provided</scope>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>${slf4j.version}</version>
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</dependency>
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<dependency>
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<groupId>ch.qos.logback</groupId>
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<artifactId>logback-classic</artifactId>
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<version>${logback.version}</version>
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</dependency>
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<dependency>
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<groupId>postgresql</groupId>
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<artifactId>postgresql</artifactId>
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<version>${postgresql.version}</version>
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</dependency>
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</dependencies>
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<build>
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<resources>
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<resource>
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<directory>src/main/resources</directory>
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<filtering>true</filtering>
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</resource>
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</resources>
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<plugins>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-compiler-plugin</artifactId>
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<configuration>
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<source>1.8</source>
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<target>1.8</target>
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</configuration>
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</plugin>
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<plugin>
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<groupId>org.apache.maven.plugins</groupId>
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<artifactId>maven-dependency-plugin</artifactId>
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<executions>
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<execution>
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<id>copy-dependencies</id>
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<phase>package</phase>
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<goals>
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<goal>copy-dependencies</goal>
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</goals>
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<configuration>
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<excludeScope>provided</excludeScope>
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</configuration>
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</execution>
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</executions>
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</plugin>
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</plugins>
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</build>
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</project>

‎examples/fbjava-example/src/main/java/org/firebirdsql/fbjava/examples/fbjava_example/FbJdbc.java‎

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/*
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* FB/Java plugin
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*
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* Distributable under LGPL license.
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* You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* LGPL License for more details.
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*
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* This file was created by members of the Firebird development team.
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* All individual contributions remain the Copyright (C) of those
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* individuals. Contributors to this file are either listed here or
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* can be obtained from a git log command.
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*
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* All rights reserved.
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*/
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package org.firebirdsql.fbjava.examples.fbjava_example;
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import java.sql.Connection;
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import java.sql.DriverManager;
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import java.sql.PreparedStatement;
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import java.sql.ResultSet;
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import java.sql.SQLException;
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import java.util.StringTokenizer;
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import org.firebirdsql.fbjava.ExternalResultSet;
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import org.firebirdsql.fbjava.ProcedureContext;
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import org.firebirdsql.fbjava.Values;
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import org.firebirdsql.fbjava.ValuesMetadata;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* @author <a href="mailto:adrianosf@gmail.com">Adriano dos Santos Fernandes</a>
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*/
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public class FbJdbc
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{
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private static final Logger log = LoggerFactory.getLogger(FbJdbc.class);
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static
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{
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try
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{
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Class.forName("org.postgresql.Driver");
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}
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catch (ClassNotFoundException e)
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{
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log.warn("Cannot load org.postgresql.Driver", e);
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}
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}
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public static ExternalResultSet executeQuery() throws Exception
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{
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final ProcedureContext context = ProcedureContext.get();
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return new ExternalResultSet() {
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ValuesMetadata outMetadata = context.getOutputMetadata();
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Values outValues = context.getOutputValues();
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int count = outMetadata.getParameterCount();
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Connection conn;
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PreparedStatement stmt;
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ResultSet rs;
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{
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StringTokenizer tokenizer = new StringTokenizer(context.getNameInfo(), "|");
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String uri = tokenizer.nextToken();
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String user = tokenizer.hasMoreTokens() ? tokenizer.nextToken() : null;
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String password = tokenizer.hasMoreTokens() ? tokenizer.nextToken() : null;
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conn = DriverManager.getConnection(uri, user, password);
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try
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{
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StringBuilder sb = new StringBuilder("select ");
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for (int i = 0; i < count; ++i)
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{
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if (i != 0)
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sb.append(", ");
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sb.append("x." + outMetadata.getName(i + 1));
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}
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sb.append(" from (" + context.getBody() + ") x");
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stmt = conn.prepareStatement(sb.toString());
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rs = stmt.executeQuery();
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}
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catch (Exception e)
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{
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close();
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throw e;
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}
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}
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@Override
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public void close()
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{
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try
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{
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if (rs != null)
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rs.close();
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if (stmt != null)
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stmt.close();
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if (conn != null)
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conn.close();
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}
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catch (SQLException e)
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{
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log.error("Error closing the ExternalResultSet", e);
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}
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}
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@Override
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public boolean fetch() throws Exception
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{
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if (!rs.next())
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return false;
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for (int i = 0; i < count; ++i)
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{
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Object obj = rs.getObject(i + 1);
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if (obj instanceof Number)
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obj = rs.getBigDecimal(i + 1);
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outValues.setObject(i + 1, obj);
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}
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return true;
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}
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};
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}
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}

‎examples/fbjava-example/src/main/java/org/firebirdsql/fbjava/examples/fbjava_example/FbLogger.java‎

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/*
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* FB/Java plugin
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*
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* Distributable under LGPL license.
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* You may obtain a copy of the License at http://www.gnu.org/copyleft/lgpl.html
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* LGPL License for more details.
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*
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* This file was created by members of the Firebird development team.
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* All individual contributions remain the Copyright (C) of those
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* individuals. Contributors to this file are either listed here or
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* can be obtained from a git log command.
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*
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* All rights reserved.
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*/
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package org.firebirdsql.fbjava.examples.fbjava_example;
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import java.sql.SQLException;
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import org.firebirdsql.fbjava.TriggerContext;
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import org.firebirdsql.fbjava.Values;
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import org.firebirdsql.fbjava.ValuesMetadata;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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/**
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* @author <a href="mailto:adrianosf@gmail.com">Adriano dos Santos Fernandes</a>
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*/
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public class FbLogger
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{
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private static final Logger log = LoggerFactory.getLogger(FbLogger.class);
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private static final String NEWLINE = System.getProperty("line.separator");
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public static void info() throws SQLException
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{
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TriggerContext context = TriggerContext.get();
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String msg = "Table: " + context.getTableName() +
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"; Type: " + context.getType() +
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"; Action: " + context.getAction() +
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valuesToStr(context.getFieldsMetadata(), context.getOldValues(), NEWLINE + "OLD:" + NEWLINE) +
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valuesToStr(context.getFieldsMetadata(), context.getNewValues(), NEWLINE + "NEW:" + NEWLINE);
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log.info(msg);
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}
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private static String valuesToStr(ValuesMetadata metadata, Values values, String label) throws SQLException
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{
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if (values == null)
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return "";
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StringBuilder sb = new StringBuilder(label);
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for (int i = 1, count = metadata.getParameterCount(); i <= count; ++i)
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sb.append(metadata.getName(i) + ": " + values.getObject(i) + NEWLINE);
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return sb.toString();
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}
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}

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