fix: Implement zero as limit for getAllSubmodels (#1000)

Signed-off-by: Linus Schöler <linus@schoeler.de>

Author: Linus187erz

basyx.submodelrepository/basyx.submodelrepository-http/src/main/java/org/eclipse/digitaltwin/basyx/submodelrepository/http/SubmodelRepositoryApiHTTPController.java

@@ -111,7 +111,7 @@ public ResponseEntity<Void> deleteSubmodelElementByPathSubmodelRepo(
 	}
 
 	@Override
-	public ResponseEntity<PagedResult> getAllSubmodels(@Base64UrlEncodedIdentifierSize(min = 1, max = 3072) @Valid Base64UrlEncodedIdentifier semanticId, @Valid String idShort, @Min(1) @Valid Integer limit,
+	public ResponseEntity<PagedResult> getAllSubmodels(@Base64UrlEncodedIdentifierSize(min = 1, max = 3072) @Valid Base64UrlEncodedIdentifier semanticId, @Valid String idShort, @Min(0) @Valid Integer limit,
 			@Valid Base64UrlEncodedCursor cursor, @Valid String level, @Valid String extent) {
 		if (limit == null) {
 			limit = 100;
@@ -153,7 +153,7 @@ public ResponseEntity<Void> putSubmodelById(Base64UrlEncodedIdentifier submodelI
 	}
 
 	@Override
-	public ResponseEntity<PagedResult> getAllSubmodelElements(Base64UrlEncodedIdentifier submodelIdentifier, @Min(1) @Valid Integer limit, @Valid Base64UrlEncodedCursor cursor, @Valid String level, @Valid String extent) {
+	public ResponseEntity<PagedResult> getAllSubmodelElements(Base64UrlEncodedIdentifier submodelIdentifier, @Min(0) @Valid Integer limit, @Valid Base64UrlEncodedCursor cursor, @Valid String level, @Valid String extent) {
 		if (limit == null) {
 			limit = 100;
 		}

basyx.submodelrepository/basyx.submodelrepository-http/src/main/java/org/eclipse/digitaltwin/basyx/submodelrepository/http/SubmodelRepositoryHTTPApi.java

@@ -82,8 +82,8 @@ public interface SubmodelRepositoryHTTPApi {
 	ResponseEntity<PagedResult> getAllSubmodels(
 			@Base64UrlEncodedIdentifierSize(min = 1, max = 3072) @Parameter(in = ParameterIn.QUERY, description = "The value of the semantic id reference (UTF8-BASE64-URL-encoded)", schema = @Schema()) @Valid @RequestParam(value = "semanticId", required = false) Base64UrlEncodedIdentifier semanticId,
 			@Parameter(in = ParameterIn.QUERY, description = "The Asset Administration Shell’s IdShort", schema = @Schema()) @Valid @RequestParam(value = "idShort", required = false) String idShort,
-			@Min(1) @Parameter(in = ParameterIn.QUERY, description = "The maximum number of elements in the response array", schema = @Schema(allowableValues = {
-					"1" }, minimum = "1")) @Valid @RequestParam(value = "limit", required = false) Integer limit,
+			@Min(0) @Parameter(in = ParameterIn.QUERY, description = "The maximum number of elements in the response array", schema = @Schema(allowableValues = {
+					"1" }, minimum = "0")) @Valid @RequestParam(value = "limit", required = false) Integer limit,
 			@Parameter(in = ParameterIn.QUERY, description = "A server-generated identifier retrieved from pagingMetadata that specifies from which position the result listing should continue", schema = @Schema()) @Valid @RequestParam(value = "cursor", required = false) Base64UrlEncodedCursor cursor,
 			@Parameter(in = ParameterIn.QUERY, description = "Determines the structural depth of the respective resource content", schema = @Schema(allowableValues = { "deep",
 					"core" }, defaultValue = "deep")) @Valid @RequestParam(value = "level", required = false, defaultValue = "deep") String level,
@@ -227,8 +227,8 @@ ResponseEntity<Void> deleteSubmodelById(
 	@RequestMapping(value = "/submodels/{submodelIdentifier}/submodel-elements", produces = { "application/json" }, method = RequestMethod.GET)
 	ResponseEntity<PagedResult> getAllSubmodelElements(
 			@Parameter(in = ParameterIn.PATH, description = "The Submodel’s unique id (UTF8-BASE64-URL-encoded)", required = true, schema = @Schema()) @PathVariable("submodelIdentifier") Base64UrlEncodedIdentifier submodelIdentifier,
-			@Min(1) @Parameter(in = ParameterIn.QUERY, description = "The maximum number of elements in the response array", schema = @Schema(allowableValues = {
-					"1" }, minimum = "1")) @Valid @RequestParam(value = "limit", required = false) Integer limit,
+			@Min(0) @Parameter(in = ParameterIn.QUERY, description = "The maximum number of elements in the response array", schema = @Schema(allowableValues = {
+					"1" }, minimum = "0")) @Valid @RequestParam(value = "limit", required = false) Integer limit,
 			@Parameter(in = ParameterIn.QUERY, description = "A server-generated identifier retrieved from pagingMetadata that specifies from which position the result listing should continue", schema = @Schema()) @Valid @RequestParam(value = "cursor", required = false) Base64UrlEncodedCursor cursor,
 			@Parameter(in = ParameterIn.QUERY, description = "Determines the structural depth of the respective resource content", schema = @Schema(allowableValues = { "deep",
 					"core" }, defaultValue = "deep")) @Valid @RequestParam(value = "level", required = false, defaultValue = "deep") String level,