chore: regenerate discoveryengine client (googleapis#30226)

Generated in GitHub action: https://togithub.com/googleapis/googleapis/google-api-java-client-services/actions/workflows/codegen.yaml

Author: yoshi-code-bot

clients/google-api-services-discoveryengine/v1/2.0.0/README.md

@@ -22,7 +22,7 @@ Add the following lines to your `pom.xml` file:
     <dependency>
       <groupId>com.google.apis</groupId>
       <artifactId>google-api-services-discoveryengine</artifactId>
-      <version>v1-rev20251116-2.0.0</version>
+      <version>v1-rev20251209-2.0.0</version>
     </dependency>
   </dependencies>
 </project>
@@ -35,7 +35,7 @@ repositories {
   mavenCentral()
 }
 dependencies {
-  implementation 'com.google.apis:google-api-services-discoveryengine:v1-rev20251116-2.0.0'
+  implementation 'com.google.apis:google-api-services-discoveryengine:v1-rev20251209-2.0.0'
 }
 ```
 

clients/google-api-services-discoveryengine/v1/2.0.0/com/google/api/services/discoveryengine/v1/DiscoveryEngine.java

@@ -161,6 +161,13 @@ public final class GoogleCloudDiscoveryengineV1DataStore extends com.google.api.
   @com.google.api.client.util.Key
   private java.lang.String name;
 
+  /**
+   * Optional. Configuration for Natural Language Query Understanding.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig naturalLanguageQueryUnderstandingConfig;
+
   /**
    * Optional. Stores serving config at DataStore level.
    * The value may be {@code null}.
@@ -512,6 +519,23 @@ public GoogleCloudDiscoveryengineV1DataStore setName(java.lang.String name) {
     return this;
   }
 
+  /**
+   * Optional. Configuration for Natural Language Query Understanding.
+   * @return value or {@code null} for none
+   */
+  public GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig getNaturalLanguageQueryUnderstandingConfig() {
+    return naturalLanguageQueryUnderstandingConfig;
+  }
+
+  /**
+   * Optional. Configuration for Natural Language Query Understanding.
+   * @param naturalLanguageQueryUnderstandingConfig naturalLanguageQueryUnderstandingConfig or {@code null} for none
+   */
+  public GoogleCloudDiscoveryengineV1DataStore setNaturalLanguageQueryUnderstandingConfig(GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig naturalLanguageQueryUnderstandingConfig) {
+    this.naturalLanguageQueryUnderstandingConfig = naturalLanguageQueryUnderstandingConfig;
+    return this;
+  }
+
   /**
    * Optional. Stores serving config at DataStore level.
    * @return value or {@code null} for none

clients/google-api-services-discoveryengine/v1/2.0.0/com/google/api/services/discoveryengine/v1/model/GoogleCloudDiscoveryengineV1DataStore.java

@@ -29,6 +29,15 @@
 @SuppressWarnings("javadoc")
 public final class GoogleCloudDiscoveryengineV1EngineSearchEngineConfig extends com.google.api.client.json.GenericJson {
 
+  /**
+   * Optional. The required subscription tier of this engine. They cannot be modified after engine
+   * creation. If the required subscription tier is search, user with higher license tier like
+   * assist can still access the standalone app associated with this engine.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String requiredSubscriptionTier;
+
   /**
    * The add-on that this search engine enables.
    * The value may be {@code null}.
@@ -45,6 +54,27 @@ public final class GoogleCloudDiscoveryengineV1EngineSearchEngineConfig extends
   @com.google.api.client.util.Key
   private java.lang.String searchTier;
 
+  /**
+   * Optional. The required subscription tier of this engine. They cannot be modified after engine
+   * creation. If the required subscription tier is search, user with higher license tier like
+   * assist can still access the standalone app associated with this engine.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getRequiredSubscriptionTier() {
+    return requiredSubscriptionTier;
+  }
+
+  /**
+   * Optional. The required subscription tier of this engine. They cannot be modified after engine
+   * creation. If the required subscription tier is search, user with higher license tier like
+   * assist can still access the standalone app associated with this engine.
+   * @param requiredSubscriptionTier requiredSubscriptionTier or {@code null} for none
+   */
+  public GoogleCloudDiscoveryengineV1EngineSearchEngineConfig setRequiredSubscriptionTier(java.lang.String requiredSubscriptionTier) {
+    this.requiredSubscriptionTier = requiredSubscriptionTier;
+    return this;
+  }
+
   /**
    * The add-on that this search engine enables.
    * @return value or {@code null} for none

clients/google-api-services-discoveryengine/v1/2.0.0/com/google/api/services/discoveryengine/v1/model/GoogleCloudDiscoveryengineV1EngineSearchEngineConfig.java

@@ -37,6 +37,13 @@ public final class GoogleCloudDiscoveryengineV1IdentityMappingEntry extends com.
   @com.google.api.client.util.Key
   private java.lang.String externalIdentity;
 
+  /**
+   * Optional. The name of the external identity.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String externalIdentityName;
+
   /**
    * Group identifier. For Google Workspace user account, group_id should be the google workspace
    * group email. For non-google identity provider, group_id is the mapped group identifier
@@ -74,6 +81,23 @@ public GoogleCloudDiscoveryengineV1IdentityMappingEntry setExternalIdentity(java
     return this;
   }
 
+  /**
+   * Optional. The name of the external identity.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getExternalIdentityName() {
+    return externalIdentityName;
+  }
+
+  /**
+   * Optional. The name of the external identity.
+   * @param externalIdentityName externalIdentityName or {@code null} for none
+   */
+  public GoogleCloudDiscoveryengineV1IdentityMappingEntry setExternalIdentityName(java.lang.String externalIdentityName) {
+    this.externalIdentityName = externalIdentityName;
+    return this;
+  }
+
   /**
    * Group identifier. For Google Workspace user account, group_id should be the google workspace
    * group email. For non-google identity provider, group_id is the mapped group identifier

clients/google-api-services-discoveryengine/v1/2.0.0/com/google/api/services/discoveryengine/v1/model/GoogleCloudDiscoveryengineV1IdentityMappingEntry.java

@@ -0,0 +1,69 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except
+ * in compliance with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software distributed under the License
+ * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing permissions and limitations under
+ * the License.
+ */
+/*
+ * This code was generated by https://github.com/googleapis/google-api-java-client-services/
+ * Modify at your own risk.
+ */
+
+package com.google.api.services.discoveryengine.v1.model;
+
+/**
+ * Configuration for Natural Language Query Understanding.
+ *
+ * <p> This is the Java data model class that specifies how to parse/serialize into the JSON that is
+ * transmitted over HTTP when working with the Discovery Engine API. For a detailed explanation see:
+ * <a href="https://developers.google.com/api-client-library/java/google-http-java-client/json">https://developers.google.com/api-client-library/java/google-http-java-client/json</a>
+ * </p>
+ *
+ * @author Google, Inc.
+ */
+@SuppressWarnings("javadoc")
+public final class GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig extends com.google.api.client.json.GenericJson {
+
+  /**
+   * Mode of Natural Language Query Understanding. If this field is unset, the behavior defaults to
+   * NaturalLanguageQueryUnderstandingConfig.Mode.DISABLED.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String mode;
+
+  /**
+   * Mode of Natural Language Query Understanding. If this field is unset, the behavior defaults to
+   * NaturalLanguageQueryUnderstandingConfig.Mode.DISABLED.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getMode() {
+    return mode;
+  }
+
+  /**
+   * Mode of Natural Language Query Understanding. If this field is unset, the behavior defaults to
+   * NaturalLanguageQueryUnderstandingConfig.Mode.DISABLED.
+   * @param mode mode or {@code null} for none
+   */
+  public GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig setMode(java.lang.String mode) {
+    this.mode = mode;
+    return this;
+  }
+
+  @Override
+  public GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig set(String fieldName, Object value) {
+    return (GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig) super.set(fieldName, value);
+  }
+
+  @Override
+  public GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig clone() {
+    return (GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig) super.clone();
+  }
+
+}

clients/google-api-services-discoveryengine/v1/2.0.0/com/google/api/services/discoveryengine/v1/model/GoogleCloudDiscoveryengineV1NaturalLanguageQueryUnderstandingConfig.java

@@ -181,11 +181,11 @@ public final class GoogleCloudDiscoveryengineV1SearchRequest extends com.google.
    * queries to achieve good search quality. The format should be the same as
    * UserEvent.PageInfo.page_category. This field is the equivalent of the query for browse
    * (navigation) queries. It's used by the browse model when the query is empty. If the field is
-   * empty, it will not be used by the browse model. To represent full path of a category, use '>'
-   * character to separate different hierarchies. If '>' is part of the category name, replace it
-   * with other character(s). For example, `Graphics Cards > RTX>4090 > Founders Edition` where "RTX
-   * > 4090" represents one level, can be rewritten as `Graphics Cards > RTX_4090 > Founders
-   * Edition`
+   * empty, it will not be used by the browse model. If the field contains more than one element,
+   * only the first element will be used. To represent full path of a category, use '>' character to
+   * separate different hierarchies. If '>' is part of the category name, replace it with other
+   * character(s). For example, `Graphics Cards > RTX>4090 > Founders Edition` where "RTX > 4090"
+   * represents one level, can be rewritten as `Graphics Cards > RTX_4090 > Founders Edition`
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
@@ -738,11 +738,11 @@ public GoogleCloudDiscoveryengineV1SearchRequest setOrderBy(java.lang.String ord
    * queries to achieve good search quality. The format should be the same as
    * UserEvent.PageInfo.page_category. This field is the equivalent of the query for browse
    * (navigation) queries. It's used by the browse model when the query is empty. If the field is
-   * empty, it will not be used by the browse model. To represent full path of a category, use '>'
-   * character to separate different hierarchies. If '>' is part of the category name, replace it
-   * with other character(s). For example, `Graphics Cards > RTX>4090 > Founders Edition` where "RTX
-   * > 4090" represents one level, can be rewritten as `Graphics Cards > RTX_4090 > Founders
-   * Edition`
+   * empty, it will not be used by the browse model. If the field contains more than one element,
+   * only the first element will be used. To represent full path of a category, use '>' character to
+   * separate different hierarchies. If '>' is part of the category name, replace it with other
+   * character(s). For example, `Graphics Cards > RTX>4090 > Founders Edition` where "RTX > 4090"
+   * represents one level, can be rewritten as `Graphics Cards > RTX_4090 > Founders Edition`
    * @return value or {@code null} for none
    */
   public java.util.List<java.lang.String> getPageCategories() {
@@ -754,11 +754,11 @@ public java.util.List<java.lang.String> getPageCategories() {
    * queries to achieve good search quality. The format should be the same as
    * UserEvent.PageInfo.page_category. This field is the equivalent of the query for browse
    * (navigation) queries. It's used by the browse model when the query is empty. If the field is
-   * empty, it will not be used by the browse model. To represent full path of a category, use '>'
-   * character to separate different hierarchies. If '>' is part of the category name, replace it
-   * with other character(s). For example, `Graphics Cards > RTX>4090 > Founders Edition` where "RTX
-   * > 4090" represents one level, can be rewritten as `Graphics Cards > RTX_4090 > Founders
-   * Edition`
+   * empty, it will not be used by the browse model. If the field contains more than one element,
+   * only the first element will be used. To represent full path of a category, use '>' character to
+   * separate different hierarchies. If '>' is part of the category name, replace it with other
+   * character(s). For example, `Graphics Cards > RTX>4090 > Founders Edition` where "RTX > 4090"
+   * represents one level, can be rewritten as `Graphics Cards > RTX_4090 > Founders Edition`
    * @param pageCategories pageCategories or {@code null} for none
    */
   public GoogleCloudDiscoveryengineV1SearchRequest setPageCategories(java.util.List<java.lang.String> pageCategories) {

clients/google-api-services-discoveryengine/v1/2.0.0/com/google/api/services/discoveryengine/v1/model/GoogleCloudDiscoveryengineV1SearchRequest.java

@@ -97,6 +97,13 @@ public final class GoogleCloudDiscoveryengineV1SearchResponse extends com.google
     com.google.api.client.util.Data.nullOf(GoogleCloudDiscoveryengineV1SearchLinkPromotion.class);
   }
 
+  /**
+   * Output only. Indicates the semantic state of the search response.
+   * The value may be {@code null}.
+   */
+  @com.google.api.client.util.Key
+  private java.lang.String semanticState;
+
   /**
    * Session information. Only set if SearchRequest.session is provided. See its description for
    * more details.
@@ -269,6 +276,23 @@ public GoogleCloudDiscoveryengineV1SearchResponse setSearchLinkPromotions(java.u
     return this;
   }
 
+  /**
+   * Output only. Indicates the semantic state of the search response.
+   * @return value or {@code null} for none
+   */
+  public java.lang.String getSemanticState() {
+    return semanticState;
+  }
+
+  /**
+   * Output only. Indicates the semantic state of the search response.
+   * @param semanticState semanticState or {@code null} for none
+   */
+  public GoogleCloudDiscoveryengineV1SearchResponse setSemanticState(java.lang.String semanticState) {
+    this.semanticState = semanticState;
+    return this;
+  }
+
   /**
    * Session information. Only set if SearchRequest.session is provided. See its description for
    * more details.

clients/google-api-services-discoveryengine/v1/2.0.0/com/google/api/services/discoveryengine/v1/model/GoogleCloudDiscoveryengineV1SearchResponse.java

@@ -163,13 +163,14 @@ public final class GoogleCloudDiscoveryengineV1UserEvent extends com.google.api.
   private java.lang.String eventType;
 
   /**
-   * The filter syntax consists of an expression language for constructing a predicate from one or
-   * more fields of the documents being filtered. One example is for `search` events, the associated
-   * SearchRequest may contain a filter expression in SearchRequest.filter conforming to
-   * https://google.aip.dev/160#filtering. Similarly, for `view-item-list` events that are generated
-   * from a RecommendRequest, this field may be populated directly from RecommendRequest.filter
-   * conforming to https://google.aip.dev/160#filtering. The value must be a UTF-8 encoded string
-   * with a length limit of 1,000 characters. Otherwise, an `INVALID_ARGUMENT` error is returned.
+   * Optional. The filter syntax consists of an expression language for constructing a predicate
+   * from one or more fields of the documents being filtered. One example is for `search` events,
+   * the associated SearchRequest may contain a filter expression in SearchRequest.filter conforming
+   * to https://google.aip.dev/160#filtering. Similarly, for `view-item-list` events that are
+   * generated from a RecommendRequest, this field may be populated directly from
+   * RecommendRequest.filter conforming to https://google.aip.dev/160#filtering. The value must be a
+   * UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an `INVALID_ARGUMENT`
+   * error is returned.
    * The value may be {@code null}.
    */
   @com.google.api.client.util.Key
@@ -544,27 +545,29 @@ public GoogleCloudDiscoveryengineV1UserEvent setEventType(java.lang.String event
   }
 
   /**
-   * The filter syntax consists of an expression language for constructing a predicate from one or
-   * more fields of the documents being filtered. One example is for `search` events, the associated
-   * SearchRequest may contain a filter expression in SearchRequest.filter conforming to
-   * https://google.aip.dev/160#filtering. Similarly, for `view-item-list` events that are generated
-   * from a RecommendRequest, this field may be populated directly from RecommendRequest.filter
-   * conforming to https://google.aip.dev/160#filtering. The value must be a UTF-8 encoded string
-   * with a length limit of 1,000 characters. Otherwise, an `INVALID_ARGUMENT` error is returned.
+   * Optional. The filter syntax consists of an expression language for constructing a predicate
+   * from one or more fields of the documents being filtered. One example is for `search` events,
+   * the associated SearchRequest may contain a filter expression in SearchRequest.filter conforming
+   * to https://google.aip.dev/160#filtering. Similarly, for `view-item-list` events that are
+   * generated from a RecommendRequest, this field may be populated directly from
+   * RecommendRequest.filter conforming to https://google.aip.dev/160#filtering. The value must be a
+   * UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an `INVALID_ARGUMENT`
+   * error is returned.
    * @return value or {@code null} for none
    */
   public java.lang.String getFilter() {
     return filter;
   }
 
   /**
-   * The filter syntax consists of an expression language for constructing a predicate from one or
-   * more fields of the documents being filtered. One example is for `search` events, the associated
-   * SearchRequest may contain a filter expression in SearchRequest.filter conforming to
-   * https://google.aip.dev/160#filtering. Similarly, for `view-item-list` events that are generated
-   * from a RecommendRequest, this field may be populated directly from RecommendRequest.filter
-   * conforming to https://google.aip.dev/160#filtering. The value must be a UTF-8 encoded string
-   * with a length limit of 1,000 characters. Otherwise, an `INVALID_ARGUMENT` error is returned.
+   * Optional. The filter syntax consists of an expression language for constructing a predicate
+   * from one or more fields of the documents being filtered. One example is for `search` events,
+   * the associated SearchRequest may contain a filter expression in SearchRequest.filter conforming
+   * to https://google.aip.dev/160#filtering. Similarly, for `view-item-list` events that are
+   * generated from a RecommendRequest, this field may be populated directly from
+   * RecommendRequest.filter conforming to https://google.aip.dev/160#filtering. The value must be a
+   * UTF-8 encoded string with a length limit of 1,000 characters. Otherwise, an `INVALID_ARGUMENT`
+   * error is returned.
    * @param filter filter or {@code null} for none
    */
   public GoogleCloudDiscoveryengineV1UserEvent setFilter(java.lang.String filter) {