150 lines
4.8 KiB
Plaintext
150 lines
4.8 KiB
Plaintext
= Java API
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include::../Versions.asciidoc[]
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[[java-api]]
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[preface]
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== Preface
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deprecated[7.0.0, The `TransportClient` is deprecated in favour of the {java-rest}/java-rest-high.html[Java High Level REST Client] and will be removed in Elasticsearch 8.0. The {java-rest}/java-rest-high-level-migration.html[migration guide] describes all the steps needed to migrate.]
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This section describes the Java API that Elasticsearch provides. All
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Elasticsearch operations are executed using a
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<<client,Client>> object. All
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operations are completely asynchronous in nature (either accepts a
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listener, or returns a future).
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Additionally, operations on a client may be accumulated and executed in
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<<java-docs-bulk,Bulk>>.
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Note, all the APIs are exposed through the
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Java API (actually, the Java API is used internally to execute them).
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== Javadoc
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The javadoc for the transport client can be found at {transport-client-javadoc}/index.html.
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== Maven Repository
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Elasticsearch is hosted on
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http://search.maven.org/#search%7Cga%7C1%7Cg%3A%22org.elasticsearch.client%22[Maven
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Central].
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For example, you can define the latest version in your `pom.xml` file:
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["source","xml",subs="attributes"]
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--------------------------------------------------
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<dependency>
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<groupId>org.elasticsearch.client</groupId>
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<artifactId>transport</artifactId>
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<version>{version}</version>
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</dependency>
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--------------------------------------------------
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[[java-transport-usage-maven-lucene]]
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=== Lucene Snapshot repository
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The very first releases of any major version (like a beta), might have been built on top of a Lucene Snapshot version.
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In such a case you will be unable to resolve the Lucene dependencies of the client.
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For example, if you want to use the `6.0.0-beta1` version which depends on Lucene `7.0.0-snapshot-00142c9`, you must
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define the following repository.
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For Maven:
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["source","xml",subs="attributes"]
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--------------------------------------------------
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<repository>
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<id>elastic-lucene-snapshots</id>
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<name>Elastic Lucene Snapshots</name>
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<url>https://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/00142c9</url>
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<releases><enabled>true</enabled></releases>
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<snapshots><enabled>false</enabled></snapshots>
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</repository>
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--------------------------------------------------
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For Gradle:
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["source","groovy",subs="attributes"]
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--------------------------------------------------
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maven {
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name "lucene-snapshots"
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url 'https://s3.amazonaws.com/download.elasticsearch.org/lucenesnapshots/00142c9'
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}
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--------------------------------------------------
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=== Log4j 2 Logger
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You need to also include Log4j 2 dependencies:
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["source","xml",subs="attributes"]
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--------------------------------------------------
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-core</artifactId>
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<version>2.11.1</version>
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</dependency>
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--------------------------------------------------
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And also provide a Log4j 2 configuration file in your classpath.
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For example, you can add in your `src/main/resources` project dir a `log4j2.properties` file like:
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["source","properties",subs="attributes"]
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--------------------------------------------------
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appender.console.type = Console
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appender.console.name = console
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appender.console.layout.type = PatternLayout
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appender.console.layout.pattern = [%d{ISO8601}][%-5p][%-25c] %marker%m%n
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rootLogger.level = info
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rootLogger.appenderRef.console.ref = console
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--------------------------------------------------
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=== Using another Logger
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If you want to use another logger than Log4j 2, you can use http://www.slf4j.org/[SLF4J] bridge to do that:
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["source","xml",subs="attributes"]
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--------------------------------------------------
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<dependency>
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<groupId>org.apache.logging.log4j</groupId>
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<artifactId>log4j-to-slf4j</artifactId>
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<version>2.11.1</version>
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</dependency>
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-api</artifactId>
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<version>1.7.24</version>
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</dependency>
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--------------------------------------------------
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http://www.slf4j.org/manual.html[This page] lists implementations you can use. Pick your favorite logger
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and add it as a dependency. As an example, we will use the `slf4j-simple` logger:
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["source","xml",subs="attributes"]
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--------------------------------------------------
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<dependency>
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<groupId>org.slf4j</groupId>
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<artifactId>slf4j-simple</artifactId>
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<version>1.7.21</version>
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</dependency>
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--------------------------------------------------
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:client-tests: {docdir}/../../server/src/test/java/org/elasticsearch/client/documentation
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:hlrc-tests: {docdir}/../../client/rest-high-level/src/test/java/org/elasticsearch/client
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:client-reindex-tests: {docdir}/../../modules/reindex/src/test/java/org/elasticsearch/client/documentation
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include::client.asciidoc[]
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include::docs.asciidoc[]
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include::search.asciidoc[]
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include::aggs.asciidoc[]
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include::query-dsl.asciidoc[]
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include::admin/index.asciidoc[]
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