Following the Forge Samples at https://docs.jboss.org/author/display/FORGE/Samples

new-project --named example --topLevelPackage com.example
persistence setup --provider HIBERNATE --container JBOSS_AS7
entity --named SampleEntity
field string --named sampleField
field temporal --named createdOn --type TIMESTAMP
ls

when you type "entity --named SampleEntity"

the result is the attached screenshot.