java.asciidoc

Table of Contents

• java
  • create
  • migrate

java

The java commandlet allows to install and setup Java. Also it supports devon4j. The arguments (devon java «args») are explained by the following table:

Table 1. Usage of devon java

Argument(s)	Meaning
setup	setup OpenJDK (install or update and verify), configurable via JAVA_VERSION (e.g. 8u242b08 or 11.0.6_10)
create «args»	create a new Java project based on devon4j application template. If a single argument is provided, this is the package name and is automatically split into groupId and artifactId. Use -DdbType=«db» to choose the database (hana, oracle, mssql, postgresql, mariadb, mysql, h2, hsqldb). Any option starting with dash is passed as is."
migrate [from «version»] [single]	migrate a devon4j project to the latest version. If for some reasons the current devonfw version (e.g. oasp4j:2.6.0) can not be auto-detected you may provide it manually after the 'from' argument. Also the 'single' option allows to migrate only to the next available version."
cicd «args»	generate cicd files for the currect devon4java project

create

Examples for create a new devon4j application:

devon java create com.example.domain.myapp

Will create an app with package com.example.domain.myapp, groupId com.example.domain, artifactId myapp, version 1.0.0-SNAPSHOT, and h2 database.

devon java create -Dversion=0.0.1-alpha1 com.example.domain.myapp

Will create an app with package com.example.domain.myapp, groupId com.example.domain, artifactId myapp, version 0.0.1-alpha1, and h2 database.

devon java create com.example.domain.myapp com.example.group

Will create an app with package com.example.domain.myapp, groupId com.example.group, artifactId myapp, version 1.0.0-SNAPSHOT, and h2 database.

devon java create com.example.domain.myapp com.example.group demo-app

Will create an app with package com.example.domain.myapp, groupId com.example.group, artifactId demo-app, version 1.0.0-SNAPSHOT, and h2 database.

devon java create com.example.domain.myapp -DartifactId=demo-app -DdbType=hana

Will create an app with package com.example.domain.myapp, groupId com.example.group, artifactId demo-app, version 1.0.0-SNAPSHOT, and SAP hana database.

devon java create com.example.domain.myapp -DdbType=oracle -Dversion=0.0.1 com.example.group -Dbatch=batch

Will create an app with package com.example.domain.myapp, groupId com.example.group, artifactId myapp, version 0.0.1, oracle database, and with a batch module.

migrate

Example for migrating a devon4j application:

devon java migrate

Will migrate current devon4j application to the latest version available.