Fix max dim value for dense vector.

Closes #2911

Author: sothawo

src/main/java/org/springframework/data/elasticsearch/core/index/MappingParameters.java

@@ -171,8 +171,8 @@ private MappingParameters(Field field) {
 		positiveScoreImpact = field.positiveScoreImpact();
 		dims = field.dims();
 		if (type == FieldType.Dense_Vector) {
-			Assert.isTrue(dims >= 1 && dims <= 2048,
-					"Invalid required parameter! Dense_Vector value \"dims\" must be between 1 and 2048.");
+			Assert.isTrue(dims >= 1 && dims <= 4096,
+					"Invalid required parameter! Dense_Vector value \"dims\" must be between 1 and 4096.");
 		}
 		Assert.isTrue(field.enabled() || type == FieldType.Object, "enabled false is only allowed for field type object");
 		enabled = field.enabled();
@@ -214,8 +214,8 @@ private MappingParameters(InnerField field) {
 		positiveScoreImpact = field.positiveScoreImpact();
 		dims = field.dims();
 		if (type == FieldType.Dense_Vector) {
-			Assert.isTrue(dims >= 1 && dims <= 2048,
-					"Invalid required parameter! Dense_Vector value \"dims\" must be between 1 and 2048.");
+			Assert.isTrue(dims >= 1 && dims <= 4096,
+					"Invalid required parameter! Dense_Vector value \"dims\" must be between 1 and 4096.");
 		}
 		enabled = true;
 		eagerGlobalOrdinals = field.eagerGlobalOrdinals();

src/test/java/org/springframework/data/elasticsearch/core/index/MappingParametersTest.java

@@ -70,8 +70,8 @@ void shouldAllowEnabledFalseOnlyOnObjectFields() {
 	}
 
 	@Test // #1700
-	@DisplayName("should not allow dims length greater than 2048 for dense_vector type")
-	void shouldNotAllowDimsLengthGreaterThan2048ForDenseVectorType() {
+	@DisplayName("should not allow dims length greater than 4096 for dense_vector type")
+	void shouldNotAllowDimsLengthGreaterThan4096ForDenseVectorType() {
 		ElasticsearchPersistentEntity<?> failEntity = elasticsearchConverter.get().getMappingContext()
 				.getRequiredPersistentEntity(DenseVectorInvalidDimsClass.class);
 		Annotation annotation = failEntity.getRequiredPersistentProperty("dense_vector").findAnnotation(Field.class);
@@ -90,21 +90,28 @@ void shouldRequireDimsParameterForDenseVectorType() {
 	}
 
 	static class AnnotatedClass {
-		@Nullable @Field private String field;
-		@Nullable @MultiField(mainField = @Field,
+		@Nullable
+		@Field private String field;
+		@Nullable
+		@MultiField(mainField = @Field,
 				otherFields = { @InnerField(suffix = "test", type = FieldType.Text) }) private String mainField;
-		@Nullable @Field(type = FieldType.Text, docValues = false) private String docValuesText;
-		@Nullable @Field(type = FieldType.Nested, docValues = false) private String docValuesNested;
-		@Nullable @Field(type = Object, enabled = true) private String enabledObject;
-		@Nullable @Field(type = Object, enabled = false) private String disabledObject;
+		@Nullable
+		@Field(type = FieldType.Text, docValues = false) private String docValuesText;
+		@Nullable
+		@Field(type = FieldType.Nested, docValues = false) private String docValuesNested;
+		@Nullable
+		@Field(type = Object, enabled = true) private String enabledObject;
+		@Nullable
+		@Field(type = Object, enabled = false) private String disabledObject;
 	}
 
 	static class InvalidEnabledFieldClass {
-		@Nullable @Field(type = FieldType.Text, enabled = false) private String disabledObject;
+		@Nullable
+		@Field(type = FieldType.Text, enabled = false) private String disabledObject;
 	}
 
 	static class DenseVectorInvalidDimsClass {
-		@Field(type = Dense_Vector, dims = 2049) private float[] dense_vector;
+		@Field(type = Dense_Vector, dims = 4097) private float[] dense_vector;
 	}
 
 	static class DenseVectorMissingDimsClass {