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Data Grid Spring Boot Starter
Data Grid Documentation Link kopierenLink in die Zwischenablage kopiert!
Abstract
1. Red Hat Data Grid Link kopierenLink in die Zwischenablage kopiert!
Data Grid is a high-performance, distributed in-memory data store.
- Schemaless data structure
- Flexibility to store different objects as key-value pairs.
- Grid-based data storage
- Designed to distribute and replicate data across clusters.
- Elastic scaling
- Dynamically adjust the number of nodes to meet demand without service disruption.
- Data interoperability
- Store, retrieve, and query data in the grid from different endpoints.
1.1. Data Grid Documentation Link kopierenLink in die Zwischenablage kopiert!
Documentation for Data Grid is available on the Red Hat customer portal.
1.2. Data Grid Downloads Link kopierenLink in die Zwischenablage kopiert!
Access the Data Grid Software Downloads on the Red Hat customer portal.
You must have a Red Hat account to access and download Data Grid software.
2. Setting Up Your Project Link kopierenLink in die Zwischenablage kopiert!
Add dependencies for the Data Grid Spring Boot Starter to your project.
2.1. Enforcing Data Grid Versions Link kopierenLink in die Zwischenablage kopiert!
This starter uses a high-level API to ensure compatibility between major versions of Data Grid. However you can enforce a specific version of Data Grid with the infinispan-bom
module.
Add infinispan-bom
to your pom.xml
file before the starter dependencies, as follows:
The Data Grid Spring Boot starter uses different Spring Boot versions to other projects such as Red Hat OpenShift Application Runtimes. If you want to use a specific Spring Boot version for compatibility with other projects, you must add the correct dependency to your project.
2.2. Adding Dependencies for Usage Modes Link kopierenLink in die Zwischenablage kopiert!
Data Grid provides different dependencies for each usage mode. Add one of the following to your pom.xml
file:
Embedded Mode
<dependency> <groupId>org.infinispan</groupId> <artifactId>infinispan-spring-boot-starter-embedded</artifactId> <version>2.2.4.Final-redhat-00001</version> </dependency>
<dependency>
<groupId>org.infinispan</groupId>
<artifactId>infinispan-spring-boot-starter-embedded</artifactId>
<version>2.2.4.Final-redhat-00001</version>
</dependency>
Remote Client/Server Mode
<dependency> <groupId>org.infinispan</groupId> <artifactId>infinispan-spring-boot-starter-remote</artifactId> <version>2.2.4.Final-redhat-00001</version> </dependency>
<dependency>
<groupId>org.infinispan</groupId>
<artifactId>infinispan-spring-boot-starter-remote</artifactId>
<version>2.2.4.Final-redhat-00001</version>
</dependency>
3. Running in Embedded Mode Link kopierenLink in die Zwischenablage kopiert!
Embed the Data Grid library in your project for in-memory data storage.
3.1. Adding the EmbeddedCacheManager Bean Link kopierenLink in die Zwischenablage kopiert!
Add
infinispan-spring-boot-starter-embedded
to your project’s classpath to enable Embedded mode.This starter operates in Remote Client/Server mode with
infinispan-spring-boot-starter-remote
on the classpath by default.Use the Spring
@Autowired
annotation to include anEmbeddedCacheManager
bean in your Java configuration classes, as in the following example:Copy to Clipboard Copied! Toggle word wrap Toggle overflow You are now ready to use Data Grid in Embedded Mode. Here is a simple example:
cacheManager.getCache("testCache").put("testKey", "testValue"); System.out.println("Received value from cache: " + cacheManager.getCache("testCache").get("testKey"));
cacheManager.getCache("testCache").put("testKey", "testValue"); System.out.println("Received value from cache: " + cacheManager.getCache("testCache").get("testKey"));
Copy to Clipboard Copied! Toggle word wrap Toggle overflow
3.2. Cache Manager Configuration Beans Link kopierenLink in die Zwischenablage kopiert!
You can customize the cache manager with the following configuration beans:
-
InfinispanGlobalConfigurer
-
InfinispanCacheConfigurer
-
Configuration
-
InfinispanConfigurationCustomizer
InfinispanGlobalConfigurationCustomizer
NoteYou can create one
InfinispanGlobalConfigurer
bean only. However you can create multiple configurations with the other beans.
InfinispanCacheConfigurer Bean
Configuration Bean
Link the bean name to the cache that it configures, as follows:
Customizer Beans
3.3. Enabling Spring Cache Support Link kopierenLink in die Zwischenablage kopiert!
Add the @EnableCaching
annotation to your application to enable Spring Cache support.
When this starter detects the EmbeddedCacheManager
bean, it instantiates a new SpringEmbeddedCacheManager
, which provides an implementation of Spring Cache.
4. Running in Server Mode Link kopierenLink in die Zwischenablage kopiert!
Store and retrieve data from remote Data Grid clusters using Hot Rod, a custom TCP binary wire protocol.
4.1. Setting Up the RemoteCacheManager Link kopierenLink in die Zwischenablage kopiert!
Provide the location for the Data Grid server so the starter can create the
RemoteCacheManager
bean.The starter first tries to find the server location in
hotrod-client.properties
and then fromapplication.properties
.Use the Spring
@Autowired
annotation to include your own custom cache manager class in your application:Copy to Clipboard Copied! Toggle word wrap Toggle overflow
Hot Rod client properties
Specify client configuration in hotrod-client.properties
on your classpath, for example:
List Infinispan or Data Grid servers by IP address or hostname at port 11222.
# List Infinispan or Data Grid servers by IP address or hostname at port 11222.
infinispan.client.hotrod.server_list=127.0.0.1:6667
For more information, see org.infinispan.client.hotrod.configuration.
Application properties
Configure your project with application.properties
. See Application Properties for more information.
4.2. Configuring Marshalling Link kopierenLink in die Zwischenablage kopiert!
Configure Data Grid servers to use Java serialization to marshall objects.
By default Data Grid server uses a ProtoStream serialization library as the default marshaller. However, the ProtoStream marshaller is not supported for Spring integration. For this reason you should use the Java Serialization Marshaller.
Specify the following properties in your
application.properties
:infinispan.remote.marshaller=org.infinispan.commons.marshall.JavaSerializationMarshaller infinispan.remote.java-serial-whitelist=your_marshalled_beans_package.*
infinispan.remote.marshaller=org.infinispan.commons.marshall.JavaSerializationMarshaller
1 infinispan.remote.java-serial-whitelist=your_marshalled_beans_package.*
2 Copy to Clipboard Copied! Toggle word wrap Toggle overflow
4.3. Cache Manager Configuration Beans Link kopierenLink in die Zwischenablage kopiert!
Customize the cache manager with the following configuration beans:
-
InfinispanRemoteConfigurer
-
Configuration
InfinispanRemoteCacheCustomizer
NoteYou can create one
InfinispanRemoteConfigurer
bean only. However you can create multiple configurations with the other beans.
InfinispanRemoteConfigurer Bean
Configuration Bean
InfinispanRemoteCacheCustomizer Bean
@Bean public InfinispanRemoteCacheCustomizer customizer() { return b -> b.tcpKeepAlive(false); }
@Bean
public InfinispanRemoteCacheCustomizer customizer() {
return b -> b.tcpKeepAlive(false);
}
Use the @Ordered
annotation to apply customizers in a specific order.
4.4. Enabling Spring Cache Support Link kopierenLink in die Zwischenablage kopiert!
Add the @EnableCaching
annotation to your application to enable Spring Cache support.
When the Data Grid starter detects the RemoteCacheManager
bean, it instantiates a new SpringRemoteCacheManager
, which provides an implementation of Spring Cache.
4.5. Exposing Data Grid Statistics Link kopierenLink in die Zwischenablage kopiert!
Data Grid supports the Spring Boot Actuator to expose cache statistics as metrics.
To use the Actuator, add the following to your pom.xml
file:
You must then activate statistics for the appropriate cache instances, either programmatically or declaratively.
Programmatically
Declaratively
<local-cache name="my-cache" statistics="true"/>
<local-cache name="my-cache" statistics="true"/>
The Spring Boot Actuator registry binds cache instances when your application starts. If you create caches dynamically, you should use the CacheMetricsRegistrar
bean to bind caches to the Actuator registry, as follows:
5. Using Spring Session Link kopierenLink in die Zwischenablage kopiert!
5.1. Enabling Spring Session Support Link kopierenLink in die Zwischenablage kopiert!
Data Grid Spring Session support is built on SpringRemoteCacheManager
and SpringEmbeddedCacheManager
. This starter produces those beans by default.
To use Spring Session in your project, do the following:
- Add this starter to your project.
- Add Spring Session to the classpath.
Add the following annotations to your configuration:
-
@EnableCaching
-
@EnableInfinispanRemoteHttpSession
-
@EnableInfinispanEmbeddedHttpSession
-
6. Application Properties Link kopierenLink in die Zwischenablage kopiert!
Configure your project with application.properties
or application.yaml
.