Types of repositories in Nexus

There are three types of repositories available in Nexus.

a.   Proxy

b.   Hosted

c.    Group

Proxy Repository

Proxy repository acts as a proxy to the remote repository. Whenever a request for an artefact come to proxy repository, proxy repository checks whether the requested artefact is available in its cache or not. If the artefact is available it serves the artefact, else it gets the artefact from the remote repository, cache the artefact and serve to the application.

Advantages

a.   Once the artefact is cached in proxy repository, it stays there forever. Even the artefact is removed from remote repository, it don’t have any effect on us.

b.   Once the artefact is cached, we no need to contact remote repositories.

Hosted Repository

Nexus also support hosted repositories to store organizational internal snapshots and releases.

Default installation of Nexus repository manager comes with two hosted repositories.

a.   maven-releases repository

b.   maven-snapshots repository

Group Repository

A repository group is a collection of other repositories. You can combine multiple repositories of same format to a single repository group.

I will explain each repository in detail in my later posts.

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