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The following commit(s) were added to refs/heads/camel-4.18.x by this push:
     new ff88400e3a95 CAMEL-23508: camel-elasticsearch-rest-client - align 
Exchange header constant names with Camel naming convention (#23244)
ff88400e3a95 is described below

commit ff88400e3a95af16e17d553b34d3752d96496c5d
Author: Andrea Cosentino <[email protected]>
AuthorDate: Fri May 15 15:36:27 2026 +0200

    CAMEL-23508: camel-elasticsearch-rest-client - align Exchange header 
constant names with Camel naming convention (#23244)
    
    Rename the Exchange header string values in ElasticSearchRestClientConstant
    from raw uppercase (ID, SEARCH_QUERY, INDEX_SETTINGS, INDEX_NAME, OPERATION)
    to the Camel naming convention (CamelElasticsearchId,
    CamelElasticsearchSearchQuery, CamelElasticsearchIndexSettings,
    CamelElasticsearchIndexName, CamelElasticsearchOperation). The Java field
    names are unchanged so routes referencing the constants symbolically
    continue to work. Routes using the literal string value must be updated.
    
    Adds an entry to the 4.21 upgrade guide and regenerates the affected
    component metadata, catalog, and endpoint DSL.
    
    Closes #23212
---
 .../components/elasticsearch-rest-client.json      | 10 ++++----
 .../rest/client/elasticsearch-rest-client.json     | 10 ++++----
 .../docs/elasticsearch-rest-client-component.adoc  | 18 ++++++-------
 .../client/ElasticSearchRestClientConstant.java    | 10 ++++----
 ...sticsearchRestClientEndpointBuilderFactory.java | 30 +++++++++++-----------
 5 files changed, 39 insertions(+), 39 deletions(-)

diff --git 
a/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/elasticsearch-rest-client.json
 
b/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/elasticsearch-rest-client.json
index 213078da96f1..880b96d42f4c 100644
--- 
a/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/elasticsearch-rest-client.json
+++ 
b/catalog/camel-catalog/src/generated/resources/org/apache/camel/catalog/components/elasticsearch-rest-client.json
@@ -38,11 +38,11 @@
     "user": { "index": 11, "kind": "property", "displayName": "User", "group": 
"security", "label": "security", "required": false, "type": "string", 
"javaType": "java.lang.String", "deprecated": false, "autowired": false, 
"secret": true, "description": "Username" }
   },
   "headers": {
-    "ID": { "index": 0, "kind": "header", "displayName": "", "group": 
"producer", "label": "", "required": false, "javaType": "String", "deprecated": 
false, "deprecationNote": "", "autowired": false, "secret": false, 
"description": "ID of the object to index or retrieve or delete", 
"constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#ID"
 },
-    "SEARCH_QUERY": { "index": 1, "kind": "header", "displayName": "", 
"group": "producer", "label": "", "required": false, "javaType": "String", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "The JSON Query to perform for search", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#SEARCH_QUERY"
 },
-    "INDEX_SETTINGS": { "index": 2, "kind": "header", "displayName": "", 
"group": "producer", "label": "", "required": false, "javaType": "String", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "Advanced - The JSON Index Settings and\/or Mappings 
Query to perform to create an index", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#INDEX_SETTINGS"
 },
-    "INDEX_NAME": { "index": 3, "kind": "header", "displayName": "", "group": 
"producer", "label": "", "required": false, "javaType": "String", "deprecated": 
false, "deprecationNote": "", "autowired": false, "secret": false, 
"description": "The Index name", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#INDEX_NAME"
 },
-    "OPERATION": { "index": 4, "kind": "header", "displayName": "", "group": 
"producer", "label": "", "required": false, "javaType": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticsearchRestClientOperation",
 "enum": [ "INDEX_OR_UPDATE", "GET_BY_ID", "DELETE", "CREATE_INDEX", 
"DELETE_INDEX", "SEARCH" ], "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The operation to perform", 
"constantName": "org.apache.camel.component.elasti [...]
+    "CamelElasticsearchId": { "index": 0, "kind": "header", "displayName": "", 
"group": "producer", "label": "", "required": false, "javaType": "String", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "ID of the object to index or retrieve or delete", 
"constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#ID"
 },
+    "CamelElasticsearchSearchQuery": { "index": 1, "kind": "header", 
"displayName": "", "group": "producer", "label": "", "required": false, 
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired": 
false, "secret": false, "description": "The JSON Query to perform for search", 
"constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#SEARCH_QUERY"
 },
+    "CamelElasticsearchIndexSettings": { "index": 2, "kind": "header", 
"displayName": "", "group": "producer", "label": "", "required": false, 
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired": 
false, "secret": false, "description": "Advanced - The JSON Index Settings 
and\/or Mappings Query to perform to create an index", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#INDEX_SETTINGS"
 },
+    "CamelElasticsearchIndexName": { "index": 3, "kind": "header", 
"displayName": "", "group": "producer", "label": "", "required": false, 
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired": 
false, "secret": false, "description": "The Index name", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#INDEX_NAME"
 },
+    "CamelElasticsearchOperation": { "index": 4, "kind": "header", 
"displayName": "", "group": "producer", "label": "", "required": false, 
"javaType": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticsearchRestClientOperation",
 "enum": [ "INDEX_OR_UPDATE", "GET_BY_ID", "DELETE", "CREATE_INDEX", 
"DELETE_INDEX", "SEARCH" ], "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The operation to perform", 
"constantName": "org.apache.came [...]
   },
   "properties": {
     "clusterName": { "index": 0, "kind": "path", "displayName": "Cluster 
Name", "group": "producer", "label": "", "required": true, "type": "string", 
"javaType": "java.lang.String", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Cluster Name" },
diff --git 
a/components/camel-elasticsearch-rest-client/src/generated/resources/META-INF/org/apache/camel/component/elasticsearch/rest/client/elasticsearch-rest-client.json
 
b/components/camel-elasticsearch-rest-client/src/generated/resources/META-INF/org/apache/camel/component/elasticsearch/rest/client/elasticsearch-rest-client.json
index 213078da96f1..880b96d42f4c 100644
--- 
a/components/camel-elasticsearch-rest-client/src/generated/resources/META-INF/org/apache/camel/component/elasticsearch/rest/client/elasticsearch-rest-client.json
+++ 
b/components/camel-elasticsearch-rest-client/src/generated/resources/META-INF/org/apache/camel/component/elasticsearch/rest/client/elasticsearch-rest-client.json
@@ -38,11 +38,11 @@
     "user": { "index": 11, "kind": "property", "displayName": "User", "group": 
"security", "label": "security", "required": false, "type": "string", 
"javaType": "java.lang.String", "deprecated": false, "autowired": false, 
"secret": true, "description": "Username" }
   },
   "headers": {
-    "ID": { "index": 0, "kind": "header", "displayName": "", "group": 
"producer", "label": "", "required": false, "javaType": "String", "deprecated": 
false, "deprecationNote": "", "autowired": false, "secret": false, 
"description": "ID of the object to index or retrieve or delete", 
"constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#ID"
 },
-    "SEARCH_QUERY": { "index": 1, "kind": "header", "displayName": "", 
"group": "producer", "label": "", "required": false, "javaType": "String", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "The JSON Query to perform for search", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#SEARCH_QUERY"
 },
-    "INDEX_SETTINGS": { "index": 2, "kind": "header", "displayName": "", 
"group": "producer", "label": "", "required": false, "javaType": "String", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "Advanced - The JSON Index Settings and\/or Mappings 
Query to perform to create an index", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#INDEX_SETTINGS"
 },
-    "INDEX_NAME": { "index": 3, "kind": "header", "displayName": "", "group": 
"producer", "label": "", "required": false, "javaType": "String", "deprecated": 
false, "deprecationNote": "", "autowired": false, "secret": false, 
"description": "The Index name", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#INDEX_NAME"
 },
-    "OPERATION": { "index": 4, "kind": "header", "displayName": "", "group": 
"producer", "label": "", "required": false, "javaType": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticsearchRestClientOperation",
 "enum": [ "INDEX_OR_UPDATE", "GET_BY_ID", "DELETE", "CREATE_INDEX", 
"DELETE_INDEX", "SEARCH" ], "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The operation to perform", 
"constantName": "org.apache.camel.component.elasti [...]
+    "CamelElasticsearchId": { "index": 0, "kind": "header", "displayName": "", 
"group": "producer", "label": "", "required": false, "javaType": "String", 
"deprecated": false, "deprecationNote": "", "autowired": false, "secret": 
false, "description": "ID of the object to index or retrieve or delete", 
"constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#ID"
 },
+    "CamelElasticsearchSearchQuery": { "index": 1, "kind": "header", 
"displayName": "", "group": "producer", "label": "", "required": false, 
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired": 
false, "secret": false, "description": "The JSON Query to perform for search", 
"constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#SEARCH_QUERY"
 },
+    "CamelElasticsearchIndexSettings": { "index": 2, "kind": "header", 
"displayName": "", "group": "producer", "label": "", "required": false, 
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired": 
false, "secret": false, "description": "Advanced - The JSON Index Settings 
and\/or Mappings Query to perform to create an index", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#INDEX_SETTINGS"
 },
+    "CamelElasticsearchIndexName": { "index": 3, "kind": "header", 
"displayName": "", "group": "producer", "label": "", "required": false, 
"javaType": "String", "deprecated": false, "deprecationNote": "", "autowired": 
false, "secret": false, "description": "The Index name", "constantName": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticSearchRestClientConstant#INDEX_NAME"
 },
+    "CamelElasticsearchOperation": { "index": 4, "kind": "header", 
"displayName": "", "group": "producer", "label": "", "required": false, 
"javaType": 
"org.apache.camel.component.elasticsearch.rest.client.ElasticsearchRestClientOperation",
 "enum": [ "INDEX_OR_UPDATE", "GET_BY_ID", "DELETE", "CREATE_INDEX", 
"DELETE_INDEX", "SEARCH" ], "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "The operation to perform", 
"constantName": "org.apache.came [...]
   },
   "properties": {
     "clusterName": { "index": 0, "kind": "path", "displayName": "Cluster 
Name", "group": "producer", "label": "", "required": true, "type": "string", 
"javaType": "java.lang.String", "deprecated": false, "deprecationNote": "", 
"autowired": false, "secret": false, "description": "Cluster Name" },
diff --git 
a/components/camel-elasticsearch-rest-client/src/main/docs/elasticsearch-rest-client-component.adoc
 
b/components/camel-elasticsearch-rest-client/src/main/docs/elasticsearch-rest-client-component.adoc
index ef10bccd473d..7edde332bf8b 100644
--- 
a/components/camel-elasticsearch-rest-client/src/main/docs/elasticsearch-rest-client-component.adoc
+++ 
b/components/camel-elasticsearch-rest-client/src/main/docs/elasticsearch-rest-client-component.adoc
@@ -63,14 +63,14 @@ You can set the name of the target index from the 
`indexName` URI parameter opti
 You must provide the index id of the content to delete either in the message 
body, or via a message header with the key `ID` .
 
 |`CREATE_INDEX` | |Creates the specified `indexName` and returns a `boolean` 
value as the message exchange body, indicating whether the operation was 
successful.
-You can set the name of the target index to create from the `indexName` URI 
parameter option, or by providing a message header with the key `INDEX_NAME`.
-You may also provide a header with the key `INDEX_SETTINGS` where the value is 
a JSON String representation of the index settings.
+You can set the name of the target index to create from the `indexName` URI 
parameter option, or by providing a message header with the key 
`CamelElasticsearchIndexName`.
+You may also provide a header with the key `CamelElasticsearchIndexSettings` 
where the value is a JSON String representation of the index settings.
 
 |`DELETE_INDEX` | |Deletes the specified `indexName` and returns a `boolean` 
value as the message exchange body, indicating whether the operation was 
successful.
-You can set the name of the target index to create from the `indexName` URI 
parameter option, or by providing a message header with the key `INDEX_NAME`.
+You can set the name of the target index to create from the `indexName` URI 
parameter option, or by providing a message header with the key 
`CamelElasticsearchIndexName`.
 
 |`SEARCH` |`Map` (optional) |Search for content with either a `Map` of 
`String` keys & values of query criteria. Or a JSON string representation of 
the query. Matching documents are returned as a JSON string set on the message 
exchange body.
-You can set the JSON query String by providing a message header with the key 
`SEARCH_QUERY`.
+You can set the JSON query String by providing a message header with the key 
`CamelElasticsearchSearchQuery`.
 You can set the message exchange body to a `Map` of `String` keys & values for 
the query criteria.
 
 |===
@@ -93,7 +93,7 @@ To update existing indexed content, provide the `ID` message 
header and the mess
 [source,java]
 ----
 from("direct:index")
-    .setHeader("ID").constant("1")
+    .setHeader("CamelElasticsearchId").constant("1")
     .setBody().constant("{\"content\": \"ElasticSearch REST Client With 
Camel\"}")
     
.to("elasticsearch-rest-client://myCluster?operation=INDEX_OR_UPDATE&indexName=myIndex");
 ----
@@ -103,7 +103,7 @@ from("direct:index")
 [source,java]
 ----
 from("direct:getById")
-    .setHeader("ID").constant("1")
+    .setHeader("CamelElasticsearchId").constant("1")
     
.to("elasticsearch-rest-client://myCluster?operation=GET_BY_ID&indexName=myIndex");
 ----
 
@@ -114,7 +114,7 @@ To delete indexed content, provide the `ID` message header.
 [source,java]
 ----
 from("direct:getById")
-    .setHeader("ID").constant("1")
+    .setHeader("CamelElasticsearchId").constant("1")
     
.to("elasticsearch-rest-client://myCluster?operation=DELETE&indexName=myIndex");
 ----
 
@@ -138,7 +138,7 @@ String indexSettings = 
"{\"settings\":{\"number_of_replicas\": 1,\"number_of_sha
 [source,java]
 ----
 from("direct:createIndex")
-    .setHeader("INDEX_SETTINGS").constant(indexSettings)
+    .setHeader("CamelElasticsearchIndexSettings").constant(indexSettings)
     
.to("elasticsearch-rest-client://myCluster?operation=CREATE_INDEX&indexName=myIndex");
 ----
 
@@ -159,7 +159,7 @@ Search with a JSON query.
 [source,java]
 ----
 from("direct:search")
-    
.setHeader("SEARCH_QUERY").constant("{\"query\":{\"match\":{\"content\":\"ElasticSearch
 With Camel\"}}}")
+    
.setHeader("CamelElasticsearchSearchQuery").constant("{\"query\":{\"match\":{\"content\":\"ElasticSearch
 With Camel\"}}}")
     
.to("elasticsearch-rest-client://myCluster?operation=SEARCH&indexName=myIndex");
 ----
 
diff --git 
a/components/camel-elasticsearch-rest-client/src/main/java/org/apache/camel/component/elasticsearch/rest/client/ElasticSearchRestClientConstant.java
 
b/components/camel-elasticsearch-rest-client/src/main/java/org/apache/camel/component/elasticsearch/rest/client/ElasticSearchRestClientConstant.java
index c5a4623f3160..d1ebaf42a72d 100644
--- 
a/components/camel-elasticsearch-rest-client/src/main/java/org/apache/camel/component/elasticsearch/rest/client/ElasticSearchRestClientConstant.java
+++ 
b/components/camel-elasticsearch-rest-client/src/main/java/org/apache/camel/component/elasticsearch/rest/client/ElasticSearchRestClientConstant.java
@@ -21,21 +21,21 @@ import org.apache.camel.spi.Metadata;
 public class ElasticSearchRestClientConstant {
 
     @Metadata(description = " ID of the object to index or retrieve or 
delete", javaType = "String")
-    public static final String ID = "ID";
+    public static final String ID = "CamelElasticsearchId";
 
     @Metadata(description = "The JSON Query to perform for search", javaType = 
"String")
-    public static final String SEARCH_QUERY = "SEARCH_QUERY";
+    public static final String SEARCH_QUERY = "CamelElasticsearchSearchQuery";
 
     @Metadata(description = "Advanced - The JSON Index Settings and/or 
Mappings Query to perform to create an index",
               javaType = "String")
-    public static final String INDEX_SETTINGS = "INDEX_SETTINGS";
+    public static final String INDEX_SETTINGS = 
"CamelElasticsearchIndexSettings";
 
     @Metadata(description = "The Index name", javaType = "String")
-    public static final String INDEX_NAME = "INDEX_NAME";
+    public static final String INDEX_NAME = "CamelElasticsearchIndexName";
 
     @Metadata(description = "The operation to perform",
               javaType = 
"org.apache.camel.component.elasticsearch.rest.client.ElasticsearchRestClientOperation")
-    public static final String OPERATION = "OPERATION";
+    public static final String OPERATION = "CamelElasticsearchOperation";
 
     public static final int SOCKET_CONNECTION_TIMEOUT = 30000;
     public static final int SNIFFER_INTERVAL_AND_FAILURE_DELAY = 60000;
diff --git 
a/dsl/camel-endpointdsl/src/generated/java/org/apache/camel/builder/endpoint/dsl/ElasticsearchRestClientEndpointBuilderFactory.java
 
b/dsl/camel-endpointdsl/src/generated/java/org/apache/camel/builder/endpoint/dsl/ElasticsearchRestClientEndpointBuilderFactory.java
index 7f20c6a328dd..2fb262566a8d 100644
--- 
a/dsl/camel-endpointdsl/src/generated/java/org/apache/camel/builder/endpoint/dsl/ElasticsearchRestClientEndpointBuilderFactory.java
+++ 
b/dsl/camel-endpointdsl/src/generated/java/org/apache/camel/builder/endpoint/dsl/ElasticsearchRestClientEndpointBuilderFactory.java
@@ -466,10 +466,10 @@ public interface 
ElasticsearchRestClientEndpointBuilderFactory {
          * 
          * Group: producer
          * 
-         * @return the name of the header {@code ID}.
+         * @return the name of the header {@code ElasticsearchId}.
          */
-        public String iD() {
-            return "ID";
+        public String elasticsearchId() {
+            return "CamelElasticsearchId";
         }
         /**
          * The JSON Query to perform for search.
@@ -478,10 +478,10 @@ public interface 
ElasticsearchRestClientEndpointBuilderFactory {
          * 
          * Group: producer
          * 
-         * @return the name of the header {@code SEARCH_QUERY}.
+         * @return the name of the header {@code ElasticsearchSearchQuery}.
          */
-        public String searchQuery() {
-            return "SEARCH_QUERY";
+        public String elasticsearchSearchQuery() {
+            return "CamelElasticsearchSearchQuery";
         }
         /**
          * Advanced - The JSON Index Settings and/or Mappings Query to perform
@@ -491,10 +491,10 @@ public interface 
ElasticsearchRestClientEndpointBuilderFactory {
          * 
          * Group: producer
          * 
-         * @return the name of the header {@code INDEX_SETTINGS}.
+         * @return the name of the header {@code ElasticsearchIndexSettings}.
          */
-        public String indexSettings() {
-            return "INDEX_SETTINGS";
+        public String elasticsearchIndexSettings() {
+            return "CamelElasticsearchIndexSettings";
         }
         /**
          * The Index name.
@@ -503,10 +503,10 @@ public interface 
ElasticsearchRestClientEndpointBuilderFactory {
          * 
          * Group: producer
          * 
-         * @return the name of the header {@code INDEX_NAME}.
+         * @return the name of the header {@code ElasticsearchIndexName}.
          */
-        public String indexName() {
-            return "INDEX_NAME";
+        public String elasticsearchIndexName() {
+            return "CamelElasticsearchIndexName";
         }
         /**
          * The operation to perform.
@@ -516,10 +516,10 @@ public interface 
ElasticsearchRestClientEndpointBuilderFactory {
          * 
          * Group: producer
          * 
-         * @return the name of the header {@code OPERATION}.
+         * @return the name of the header {@code ElasticsearchOperation}.
          */
-        public String oPERATION() {
-            return "OPERATION";
+        public String elasticsearchOperation() {
+            return "CamelElasticsearchOperation";
         }
     }
     static ElasticsearchRestClientEndpointBuilder endpointBuilder(String 
componentName, String path) {

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