Обсуждение: Java Triggers
Hi there, I'm a very competent Oracle developer, but have never used Postgres. There's currently a project taking place where I'm working that is developing on an Oracle database, but could potentially be migrated to an open source database in the future; possibly Postgres. There are two questions currently being asked about Postgres: 1. Can it support triggers? 2. Can it support Java Triggers (Java in the database trigger body)? I know the answer to the first question is a definite "Yes". However, I don't know the answer to the second. Please can anybody help? Thanks in advance. James
I would think the answer is yes. pljava allows you to create java functions, and triggers invoke functions eg CREATE TRIGGER sometrigger BEFORE UPDATE ON schema.table FOR EACH ROW EXECUTE PROCEDURE yourfunction(); Here's a link for the pljava language. http://gborg.postgresql.org/project/pljava/genpage.php?userguide John Jimbo1 wrote: > Hi there, > > I'm a very competent Oracle developer, but have never used Postgres. > There's currently a project taking place where I'm working that is > developing on an Oracle database, but could potentially be migrated to > an open source database in the future; possibly Postgres. > > There are two questions currently being asked about Postgres: > > 1. Can it support triggers? > 2. Can it support Java Triggers (Java in the database trigger body)? > > I know the answer to the first question is a definite "Yes". However, I > don't know the answer to the second. > > Please can anybody help? > > Thanks in advance. > > James > > > ---------------------------(end of broadcast)--------------------------- > TIP 4: Have you searched our list archives? > > http://archives.postgresql.org
John, Thanks for the referral. The link is a bit outdated since all web content has moved to a wiki. Please use: http://wiki.tada.se/display/pljava/Home instead. Kind regards, Thomas Hallgren John Sidney-Woollett wrote: > I would think the answer is yes. > > pljava allows you to create java functions, and triggers invoke functions > > eg > > CREATE TRIGGER sometrigger > BEFORE UPDATE > ON schema.table > FOR EACH ROW > EXECUTE PROCEDURE yourfunction(); > > Here's a link for the pljava language. > > http://gborg.postgresql.org/project/pljava/genpage.php?userguide > > John > > Jimbo1 wrote: >> Hi there, >> >> I'm a very competent Oracle developer, but have never used Postgres. >> There's currently a project taking place where I'm working that is >> developing on an Oracle database, but could potentially be migrated to >> an open source database in the future; possibly Postgres. >> >> There are two questions currently being asked about Postgres: >> >> 1. Can it support triggers? >> 2. Can it support Java Triggers (Java in the database trigger body)? >> >> I know the answer to the first question is a definite "Yes". However, I >> don't know the answer to the second. >> >> Please can anybody help? >> >> Thanks in advance. >> >> James >> >> >> ---------------------------(end of broadcast)--------------------------- >> TIP 4: Have you searched our list archives? >> >> http://archives.postgresql.org > > ---------------------------(end of broadcast)--------------------------- > TIP 5: don't forget to increase your free space map settings >