[[java-rest-high-document-update]] === Update API [[java-rest-high-document-update-request]] ==== Update Request An `UpdateRequest` requires the following arguments: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request] -------------------------------------------------- <1> Index <2> Type <3> Document id The Update API allows to update an existing document by using a script or by passing a partial document. ==== Updates with a script The script can be provided as an inline script: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-with-inline-script] -------------------------------------------------- <1> Script parameters provided as a `Map` of objects <2> Create an inline script using the `painless` language and the previous parameters <3> Sets the script to the update request Or as a stored script: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-with-stored-script] -------------------------------------------------- <1> Reference to a script stored under the name `increment-field` in the `painless` language <2> Sets the script in the update request ==== Updates with a partial document When using updates with a partial document, the partial document will be merged with the existing document. The partial document can be provided in different ways: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-with-doc-as-string] -------------------------------------------------- <1> Partial document source provided as a `String` in JSON format ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-with-doc-as-map] -------------------------------------------------- <1> Partial document source provided as a `Map` which gets automatically converted to JSON format ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-with-doc-as-xcontent] -------------------------------------------------- <1> Partial document source provided as an `XContentBuilder` object, the Elasticsearch built-in helpers to generate JSON content ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-shortcut] -------------------------------------------------- <1> Partial document source provided as `Object` key-pairs, which gets converted to JSON format ==== Upserts If the document does not already exist, it is possible to define some content that will be inserted as a new document using the `upsert` method: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-upsert] -------------------------------------------------- <1> Upsert document source provided as a `String` Similarly to the partial document updates, the content of the `upsert` document can be defined using methods that accept `String`, `Map`, `XContentBuilder` or `Object` key-pairs. ==== Optional arguments The following arguments can optionally be provided: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-routing] -------------------------------------------------- <1> Routing value ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-timeout] -------------------------------------------------- <1> Timeout to wait for primary shard to become available as a `TimeValue` <2> Timeout to wait for primary shard to become available as a `String` ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-refresh] -------------------------------------------------- <1> Refresh policy as a `WriteRequest.RefreshPolicy` instance <2> Refresh policy as a `String` ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-retry] -------------------------------------------------- <1> How many times to retry the update operation if the document to update has been changed by another operation between the get and indexing phases of the update operation ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-no-source] -------------------------------------------------- <1> Enable source retrieval, disabled by default ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-source-include] -------------------------------------------------- <1> Configure source inclusion for specific fields ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-source-exclude] -------------------------------------------------- <1> Configure source exclusion for specific fields ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-version] -------------------------------------------------- <1> Version ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-detect-noop] -------------------------------------------------- <1> Disable the noop detection ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-scripted-upsert] -------------------------------------------------- <1> Indicate that the script must run regardless of whether the document exists or not, ie the script takes care of creating the document if it does not already exist. ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-doc-upsert] -------------------------------------------------- <1> Indicate that the partial document must be used as the upsert document if it does not exist yet. ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-request-active-shards] -------------------------------------------------- <1> Sets the number of shard copies that must be active before proceeding with the update operation. <2> Number of shard copies provided as a `ActiveShardCount`: can be `ActiveShardCount.ALL`, `ActiveShardCount.ONE` or `ActiveShardCount.DEFAULT` (default) [[java-rest-high-document-update-sync]] ==== Synchronous Execution ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-execute] -------------------------------------------------- [[java-rest-high-document-update-async]] ==== Asynchronous Execution The asynchronous execution of an update request requires both the `UpdateRequest` instance and an `ActionListener` instance to be passed to the asynchronous method: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-execute-async] -------------------------------------------------- <1> The `UpdateRequest` to execute and the `ActionListener` to use when the execution completes The asynchronous method does not block and returns immediately. Once it is completed the `ActionListener` is called back using the `onResponse` method if the execution successfully completed or using the `onFailure` method if it failed. A typical listener for `UpdateResponse` looks like: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-execute-listener] -------------------------------------------------- <1> Called when the execution is successfully completed. The response is provided as an argument. <2> Called in case of failure. The raised exception is provided as an argument. [[java-rest-high-document-update-response]] ==== Update Response The returned `UpdateResponse` allows to retrieve information about the executed operation as follows: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-response] -------------------------------------------------- <1> Handle the case where the document was created for the first time (upsert) <2> Handle the case where the document was updated <3> Handle the case where the document was deleted <4> Handle the case where the document was not impacted by the update, ie no operation (noop) was executed on the document When the source retrieval is enabled in the `UpdateRequest` through the fetchSource method, the response contains the source of the updated document: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-getresult] -------------------------------------------------- <1> Retrieve the updated document as a `GetResult` <2> Retrieve the source of the updated document as a `String` <3> Retrieve the source of the updated document as a `Map` <4> Retrieve the source of the updated document as a `byte[]` <5> Handle the scenario where the source of the document is not present in the response (this is the case by default) It is also possible to check for shard failures: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-failure] -------------------------------------------------- <1> Handle the situation where number of successful shards is less than total shards <2> Handle the potential failures When a `UpdateRequest` is performed against a document that does not exist, the response has `404` status code, an `ElasticsearchException` gets thrown which needs to be handled as follows: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-docnotfound] -------------------------------------------------- <1> Handle the exception thrown because the document not exist If there is a version conflict, an `ElasticsearchException` will be thrown: ["source","java",subs="attributes,callouts,macros"] -------------------------------------------------- include-tagged::{doc-tests}/CRUDDocumentationIT.java[update-conflict] -------------------------------------------------- <1> The raised exception indicates that a version conflict error was returned.