# Preface

This document describes the functionality provided by the database plugin.

See the Deployit Reference Manual for background information on Deployit and deployment concepts.

# Overview

The database plugin is a Deployit plugin that supports deployment of SQL files and folders to a database client.

## Features

- Runs on Deployit 3.6 and up.
- Supports deployment to MySQL, Oracle and DB/2.
- Deploys and undeploys SQL files and folders.

# Requirements

- Deployit requirements

  - Deployit: version 3.6+
  - Other Deployit Plugins: None

- Infrastructural requirements

  - User credentials for accessing the database client executables on the host running the database.

# Plugin Concepts

## SQL Scripts

The SqlScripts CI encompasses a folder containing SQL scripts that are to be executed on a database. SQL scripts come in two flavors, namely installation scripts and rollback scripts. Installation scripts are used to execute changes on the database, such as creation of a table or inserting data. Each installation script is associated with a rollback script which undoes the actions performed by it's companion installation script. Rollback scripts must have the exact same name as the installation script they are associated with and have the moniker `-rollback` attached to it. Executing an installation script followed by the accompanying rollback script should leave the database in an unchanged state.

SQL scripts are ordered alphabetically based on their filename. This is an example of ordering of several installation scripts:

- 1-create-user-table.sql
- 1-create-user-table-rollback.sql
- 10-drop-user-index.sql
- 10-drop-user-index-rollback.sql
- 2-insert-user.sql
- 2-insert-user-rollback.sql
- ...
- 9-create-user-index.sql
- 9-create-user-index-rollback.sql

Note that in this example, the tenth script, 10-drop-user-index.sql would be incorrectly executed after the first script, 1-create-user-table.sql.

When upgrading a SqlScripts CI, only those scripts that were not present in the previous package version are executed. For example, if the previous SqlScripts folder contained script1.sql and script2.sql, and the new version of SqlScripts folder contains script2.sql and script3.sql, then only script3.sql will be executed as part of the upgrade.

When undeploying a SqlScripts CI, all rollback scripts are executed in reverse alphabetical order.

## SQL Client

The SqlClient CIs are containers to which SqlScripts can be deployed. The plugin ships with SqlClient for the following databases:

- MySQL
- Oracle
- DB/2

When SQL scripts are deployed to an SQL client, each script to be executed is run against the SQL client in turn. The SQL client can be configured with a username and password that is used to connect to the database. The credentials can be overridden on each SQL script if required.

# Usage in Deployment Packages

The following is a manifest snippet that shows how SQL file and folder CIs can be included in a deployment package. The SQL scripts CI refers to a folder, sql, in the deployment package.

    Manifest-Version: 1.0
    Deployit-Package-Format-Version: 1.3
    CI-Application: PetClinic-ear
    CI-Version: 2.0

    Name: PetClinic-2.0.ear
    CI-Type: jee.Ear
    CI-Name: PetClinic

    Name: sql
    CI-Type: sql.SqlScripts
    CI-Name: sql

# Using the deployables and deployeds

The following table describes which deployable/container combinations are possible.

## Deployable vs. Container table

Deployable | Container | Generated deployed
--- | --- | ---
sql.SqlScripts | sql.OracleClient, sql.MySqlClient, sql.Db2Client | sql.ExecutedSqlScripts

The following table describes the effect a deployed has on it's container.

## Deployed Actions Table

Deployed | Actions performed for operations
--- | ---
| Create | Destroy | Modify
sql.ExecutedSqlScripts | For each installation script in the folder (ordered alphabetically by name, ascending): Run script through template engine Copy create script to container Execute script | For each rollback script in the folder (ordered alphabetically by name, descending): Run script through template engine Copy destroy script to container Execute script | For each installation script in the folder that was not part of the deployment being upgraded (ordered alphabetically by name, ascending): Run script through template engine Copy modify script to container Execute script

# CI Reference

## Configuration Item Overview

### Deployable Configuration Items

### Deployed Configuration Items

### Topology Configuration Items

### Virtual Topology Configuration Items

## Configuration Item Details

### sql.Db2Client

Hierarchy | sql.SqlClient >> generic.Container >> udm.BaseContainer >> udm.BaseConfigurationItem
Interfaces | udm.Taggable, udm.ConfigurationItem, generic.GenericContainer, udm.Container, overthere.HostContainer

IBM DB2 client

Public Properties
databaseName : STRING The name of the DB2 database to connect to
db2Home : STRING The directory that contains the DB2 installation
host : CI<overthere.Host> Host upon which the container resides
envVars : MAP_STRING_STRING Environment variables for container
tags : SET_OF_STRING The tags to map deployables to containers.

Hidden Properties
clientWrapperScript : STRING = sql/Db2Client Client Wrapper Script
restartOrder : INTEGER = 90 The order of the restart container step in the step list.
startOrder : INTEGER = 90 The order of the start container step in the step list.
startWaitTime : INTEGER = 0 The time to wait in seconds for a container start action.
stopOrder : INTEGER = 10 The order of the stop container step in the step list.
stopWaitTime : INTEGER = 0 The time to wait in seconds for a container stop action.
password : STRING Password
restartScript : STRING Classpath to the script used to restart the generic container.
restartWaitTime : INTEGER = 0 The time to wait in seconds for a container restart action.
startScript : STRING Classpath to the script used to start the generic container.
stopScript : STRING Classpath to the script used to stop the generic container.
username : STRING Username

### sql.ExecutedSqlScripts

Hierarchy | generic.ExecutedFolder >> generic.AbstractDeployed >> udm.BaseDeployed >> udm.BaseConfigurationItem
Interfaces | udm.Artifact, udm.Deployed, udm.ConfigurationItem, udm.DerivedArtifact

SQL scripts executed on an SQL client

Public Properties
container : CI<udm.Container> The container on which this deployed runs.
deployable : CI<udm.Deployable> The deployable that this deployed is derived from.
password : STRING If set, the password to use. Falls back to the optional default password set on the sql.SqlClient container
placeholders : MAP_STRING_STRING A key/value pair mapping of placeholders in the deployed artifact to their values. Special values are and
username : STRING If set, the user name to use. Falls back to the optional default user name set on the sql.SqlClient container

Hidden Properties
commonScriptFolderName : STRING = common Common folder that should be uploaded to the working directory.
createOrder : INTEGER = 50 The order of the step in the step list for the create operation.
createVerb : STRING = Run Create Verb
destroyOrder : INTEGER = 40 The order of the step in the step list for the destroy operation.
destroyVerb : STRING = Rollback Destroy Verb
executorScript : STRING = ${deployed.container.clientWrapperScript} Executor Script
modifyOrder : INTEGER = 50 The order of the step in the step list for the modify operation.
modifyVerb : STRING = Modify Modify Verb
noopOrder : INTEGER = 50 The order of the step in the step list for the noop operation.
noopVerb : STRING = Modify Noop Verb
rollbackScriptPostfix : STRING = -rollback.sql Rollback Script Postfix
rollbackScriptRecognitionRegex : STRING = [0-9]*-(.*)-rollback\.sql Rollback Script Recognition Regex
scriptRecognitionRegex : STRING = (?!.*-rollback\.sql)([0-9]*-.*)\.sql Script Recognition Regex
classpathResources : SET_OF_STRING Additional classpath resources that should be uploaded to the working directory before executing the script.
restartRequired : BOOLEAN = false The generic container requires a restart for the action performed by this deployed.
restartRequiredForNoop : BOOLEAN = false The generic container requires a restart for the NOOP action performed by this deployed.
templateClasspathResources : SET_OF_STRING Additional template classpath resources that should be uploaded to the working directory before executing the script.The template is first rendered and the rendered content copied to a file, with the same name as the template, in the working directory.

### sql.MySqlClient

Hierarchy | sql.SqlClient >> generic.Container >> udm.BaseContainer >> udm.BaseConfigurationItem
Interfaces | udm.Taggable, udm.ConfigurationItem, generic.GenericContainer, udm.Container, overthere.HostContainer

MySQL client

Public Properties
databaseName : STRING The name of the MySQL database to connect to
host : CI<overthere.Host> Host upon which the container resides
mySqlHome : STRING The directory that contains the MySQL installation
envVars : MAP_STRING_STRING Environment variables for container
password : STRING If set, the password to use if none is set on the deployed sql.ExecutedSqlScripts
tags : SET_OF_STRING The tags to map deployables to containers.
username : STRING If set, the user name to use if none is set on the deployed sql.ExecutedSqlScripts

Hidden Properties
clientWrapperScript : STRING = sql/MySqlClient Client Wrapper Script
restartOrder : INTEGER = 90 The order of the restart container step in the step list.
startOrder : INTEGER = 90 The order of the start container step in the step list.
startWaitTime : INTEGER = 0 The time to wait in seconds for a container start action.
stopOrder : INTEGER = 10 The order of the stop container step in the step list.
stopWaitTime : INTEGER = 0 The time to wait in seconds for a container stop action.
restartScript : STRING Classpath to the script used to restart the generic container.
restartWaitTime : INTEGER = 0 The time to wait in seconds for a container restart action.
startScript : STRING Classpath to the script used to start the generic container.
stopScript : STRING Classpath to the script used to stop the generic container.

### sql.OracleClient

Hierarchy | sql.SqlClient >> generic.Container >> udm.BaseContainer >> udm.BaseConfigurationItem
Interfaces | udm.Taggable, udm.ConfigurationItem, generic.GenericContainer, udm.Container, overthere.HostContainer

Oracle SQL*Plus client

Public Properties
host : CI<overthere.Host> Host upon which the container resides
oraHome : STRING The directory that contains the Oracle installation
sid : STRING The Oracle SID to connect to
envVars : MAP_STRING_STRING Environment variables for container
password : STRING If set, the password to use if none is set on the deployed sql.ExecutedSqlScripts
tags : SET_OF_STRING The tags to map deployables to containers.
username : STRING If set, the user name to use if none is set on the deployed sql.ExecutedSqlScripts

Hidden Properties
clientWrapperScript : STRING = sql/OracleClient Client Wrapper Script
restartOrder : INTEGER = 90 The order of the restart container step in the step list.
startOrder : INTEGER = 90 The order of the start container step in the step list.
startWaitTime : INTEGER = 0 The time to wait in seconds for a container start action.
stopOrder : INTEGER = 10 The order of the stop container step in the step list.
stopWaitTime : INTEGER = 0 The time to wait in seconds for a container stop action.
restartScript : STRING Classpath to the script used to restart the generic container.
restartWaitTime : INTEGER = 0 The time to wait in seconds for a container restart action.
startScript : STRING Classpath to the script used to start the generic container.
stopScript : STRING Classpath to the script used to stop the generic container.

### sql.SqlClient

Hierarchy | generic.Container >> udm.BaseContainer >> udm.BaseConfigurationItem
Interfaces | udm.Taggable, udm.ConfigurationItem, generic.GenericContainer, udm.Container, overthere.HostContainer

Generic SQL client

Public Properties
host : CI<overthere.Host> Host upon which the container resides
clientWrapperScript : STRING The OS-specific wrapper script that calls the SQL client
envVars : MAP_STRING_STRING Environment variables for container
password : STRING If set, the password to use if none is set on the deployed sql.ExecutedSqlScripts
tags : SET_OF_STRING The tags to map deployables to containers.
username : STRING If set, the user name to use if none is set on the deployed sql.ExecutedSqlScripts

Hidden Properties
restartOrder : INTEGER = 90 The order of the restart container step in the step list.
startOrder : INTEGER = 90 The order of the start container step in the step list.
startWaitTime : INTEGER = 0 The time to wait in seconds for a container start action.
stopOrder : INTEGER = 10 The order of the stop container step in the step list.
stopWaitTime : INTEGER = 0 The time to wait in seconds for a container stop action.
restartScript : STRING Classpath to the script used to restart the generic container.
restartWaitTime : INTEGER = 0 The time to wait in seconds for a container restart action.
startScript : STRING Classpath to the script used to start the generic container.
stopScript : STRING Classpath to the script used to stop the generic container.

### sql.SqlScripts

Hierarchy | generic.Folder >> udm.BaseDeployableFolderArtifact >> udm.BaseDeployableArtifact >> udm.BaseDeployable >> udm.BaseConfigurationItem
Interfaces | udm.Taggable, udm.Deployable, udm.SourceArtifact, udm.Artifact, udm.DeployableArtifact, udm.ConfigurationItem, udm.FolderArtifact

Folder containing SQL scripts

Public Properties
placeholders : SET_OF_STRING Placeholders detected in this artifact
scanPlaceholders : BOOLEAN = true Scan Placeholders
tags : SET_OF_STRING The tags to map deployables to containers.

Hidden Properties
textFileNamesRegex : STRING = .+\.(cfg | conf | config | ini | properties | props | txt | asp | aspx | htm | html | jsf | jsp | xht | xhtml | sql | xml | xsd | xsl | xslt) Regular expression that matches file names of text files