81 lines
3.4 KiB
Plaintext
81 lines
3.4 KiB
Plaintext
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[[java-rest-high-get-mappings]]
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=== Get Mappings API
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[[java-rest-high-get-mappings-request]]
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==== Get Mappings Request
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A `GetMappingsRequest` can have an optional list of indices and optional list of types:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[get-mapping-request]
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--------------------------------------------------
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<1> An empty request that will return all indices and types
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<2> Setting the indices to fetch mapping for
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<3> The types to be returned
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==== Optional arguments
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The following arguments can also optionally be provided:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[get-mapping-request-masterTimeout]
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--------------------------------------------------
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<1> Timeout to connect to the master node as a `TimeValue`
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<2> Timeout to connect to the master node as a `String`
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[get-mapping-request-indicesOptions]
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--------------------------------------------------
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<1> Options for expanding indices names
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[[java-rest-high-get-mappings-sync]]
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==== Synchronous Execution
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[get-mapping-execute]
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--------------------------------------------------
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[[java-rest-high-get-mapping-async]]
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==== Asynchronous Execution
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The asynchronous execution of a get mappings request requires both the
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`GetMappingsRequest` instance and an `ActionListener` instance to be passed to
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the asynchronous method:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[get-mapping-execute-async]
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--------------------------------------------------
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<1> The `GetMappingsRequest` to execute and the `ActionListener` to use when the execution completes
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The asynchronous method does not block and returns immediately. Once it is
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completed the `ActionListener` is called back using the `onResponse` method if
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the execution successfully completed or using the `onFailure` method if it
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failed.
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A typical listener for `GetMappingsResponse` looks like:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[get-mapping-execute-listener]
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--------------------------------------------------
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<1> Called when the execution is successfully completed. The response is provided as an argument
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<2> Called in case of failure. The raised exception is provided as an argument
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[[java-rest-high-get-mapping-response]]
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==== Get Mappings Response
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The returned `GetMappingsResponse` allows to retrieve information about the
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executed operation as follows:
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["source","java",subs="attributes,callouts,macros"]
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--------------------------------------------------
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include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[get-mapping-response]
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--------------------------------------------------
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<1> Returning all indices' mappings
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<2> Retrieving the mappings for a particular index and type
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<3> Getting the mappings for the "tweet" as a Java Map
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