fd437797b6
This commit polihes the original Neo4j contribution in several areas. Rather than providing the packages to scan, this commit rearranges the `EntityScan` and `EntityScanRegistrar` so that the logic can be shared for other components. If no package is provided, scanning now defaults to the "auto-configured" package(s) and a `@NodeEntityScan` annotation allows to override that. The configuration has also been updated to detect the driver based on the `uri` property. If the embedded driver is available we use that by default. If it is not available, we're trying to connect to a Neo4j server running on localhost. It is possible to disable the embedded mode or set the `uri` parameter explicitly to deviate from these defaults. The sample no longer relies on the embedded driver for licensing reason: rather it expects an instance running on localhost (like other data-related samples) and gracefully ignore any connection error. A README has been added in the sample to further explain the available options; Closes gh-5458
= Spring Boot Neo4j Sample
This sample demonstrates the integration of Neo4j with a simple entity. It
expects a Neo4j instance running on `localhost`. If your neo4j instance
requires authentication, update `application.properties` with your credentials:
```
spring.data.neo4j.username=neo4j
spring.data.neo4j.password=secret
```
You can also locally add the embedded driver to embed Neo4j instead. Note
that Spring Boot does not provide dependency management for that GPL-licensed
library:
```
<dependency>
<groupId>org.neo4j</groupId>
<artifactId>neo4j-ogm-embedded-driver</artifactId>
<version>${neo4j-ogm.version}</version>
</dependency>
```