diff --git a/pkg/analysis_server/lib/protocol/protocol_constants.dart b/pkg/analysis_server/lib/protocol/protocol_constants.dart
index e061b39bf76..d9cad4b60d2 100644
--- a/pkg/analysis_server/lib/protocol/protocol_constants.dart
+++ b/pkg/analysis_server/lib/protocol/protocol_constants.dart
@@ -236,6 +236,8 @@ const String SEARCH_REQUEST_FIND_TOP_LEVEL_DECLARATIONS =
 const String SEARCH_REQUEST_FIND_TOP_LEVEL_DECLARATIONS_PATTERN = 'pattern';
 const String SEARCH_REQUEST_GET_ELEMENT_DECLARATIONS =
     'search.getElementDeclarations';
+const String SEARCH_REQUEST_GET_ELEMENT_DECLARATIONS_MAX_RESULTS = 'maxResults';
+const String SEARCH_REQUEST_GET_ELEMENT_DECLARATIONS_PATTERN = 'pattern';
 const String SEARCH_REQUEST_GET_TYPE_HIERARCHY = 'search.getTypeHierarchy';
 const String SEARCH_REQUEST_GET_TYPE_HIERARCHY_FILE = 'file';
 const String SEARCH_REQUEST_GET_TYPE_HIERARCHY_OFFSET = 'offset';
diff --git a/pkg/analysis_server/lib/protocol/protocol_generated.dart b/pkg/analysis_server/lib/protocol/protocol_generated.dart
index 3c54e206cb0..8ab87f56972 100644
--- a/pkg/analysis_server/lib/protocol/protocol_generated.dart
+++ b/pkg/analysis_server/lib/protocol/protocol_generated.dart
@@ -15301,28 +15301,114 @@ class SearchFindTopLevelDeclarationsResult implements ResponseResult {
 /**
  * search.getElementDeclarations params
  *
+ * {
+ *   "pattern": optional String
+ *   "maxResults": optional int
+ * }
+ *
  * Clients may not extend, implement or mix-in this class.
  */
 class SearchGetElementDeclarationsParams implements RequestParams {
+  String _pattern;
+
+  int _maxResults;
+
+  /**
+   * The regular expression used to match the names of declarations. If this
+   * field is missing, return all declarations.
+   */
+  String get pattern => _pattern;
+
+  /**
+   * The regular expression used to match the names of declarations. If this
+   * field is missing, return all declarations.
+   */
+  void set pattern(String value) {
+    this._pattern = value;
+  }
+
+  /**
+   * The maximum number of declarations to return. If this field is missing,
+   * return all matching declarations.
+   */
+  int get maxResults => _maxResults;
+
+  /**
+   * The maximum number of declarations to return. If this field is missing,
+   * return all matching declarations.
+   */
+  void set maxResults(int value) {
+    this._maxResults = value;
+  }
+
+  SearchGetElementDeclarationsParams({String pattern, int maxResults}) {
+    this.pattern = pattern;
+    this.maxResults = maxResults;
+  }
+
+  factory SearchGetElementDeclarationsParams.fromJson(
+      JsonDecoder jsonDecoder, String jsonPath, Object json) {
+    if (json == null) {
+      json = {};
+    }
+    if (json is Map) {
+      String pattern;
+      if (json.containsKey("pattern")) {
+        pattern =
+            jsonDecoder.decodeString(jsonPath + ".pattern", json["pattern"]);
+      }
+      int maxResults;
+      if (json.containsKey("maxResults")) {
+        maxResults =
+            jsonDecoder.decodeInt(jsonPath + ".maxResults", json["maxResults"]);
+      }
+      return new SearchGetElementDeclarationsParams(
+          pattern: pattern, maxResults: maxResults);
+    } else {
+      throw jsonDecoder.mismatch(
+          jsonPath, "search.getElementDeclarations params", json);
+    }
+  }
+
+  factory SearchGetElementDeclarationsParams.fromRequest(Request request) {
+    return new SearchGetElementDeclarationsParams.fromJson(
+        new RequestDecoder(request), "params", request.params);
+  }
+
   @override
-  Map<String, dynamic> toJson() => <String, dynamic>{};
+  Map<String, dynamic> toJson() {
+    Map<String, dynamic> result = {};
+    if (pattern != null) {
+      result["pattern"] = pattern;
+    }
+    if (maxResults != null) {
+      result["maxResults"] = maxResults;
+    }
+    return result;
+  }
 
   @override
   Request toRequest(String id) {
-    return new Request(id, "search.getElementDeclarations", null);
+    return new Request(id, "search.getElementDeclarations", toJson());
   }
 
+  @override
+  String toString() => JSON.encode(toJson());
+
   @override
   bool operator ==(other) {
     if (other is SearchGetElementDeclarationsParams) {
-      return true;
+      return pattern == other.pattern && maxResults == other.maxResults;
     }
     return false;
   }
 
   @override
   int get hashCode {
-    return 653510116;
+    int hash = 0;
+    hash = JenkinsSmiHash.combine(hash, pattern.hashCode);
+    hash = JenkinsSmiHash.combine(hash, maxResults.hashCode);
+    return JenkinsSmiHash.finish(hash);
   }
 }
 
diff --git a/pkg/analysis_server/test/integration/support/integration_test_methods.dart b/pkg/analysis_server/test/integration/support/integration_test_methods.dart
index 35eca2f1261..ab48dde0763 100644
--- a/pkg/analysis_server/test/integration/support/integration_test_methods.dart
+++ b/pkg/analysis_server/test/integration/support/integration_test_methods.dart
@@ -1199,6 +1199,18 @@ abstract class IntegrationTestMixin {
   /**
    * Return top-level and class member declarations.
    *
+   * Parameters
+   *
+   * pattern: String (optional)
+   *
+   *   The regular expression used to match the names of declarations. If this
+   *   field is missing, return all declarations.
+   *
+   * maxResults: int (optional)
+   *
+   *   The maximum number of declarations to return. If this field is missing,
+   *   return all matching declarations.
+   *
    * Returns
    *
    * declarations: List<ElementDeclaration>
@@ -1209,9 +1221,12 @@ abstract class IntegrationTestMixin {
    *
    *   The list of the paths of files with declarations.
    */
-  Future<SearchGetElementDeclarationsResult>
-      sendSearchGetElementDeclarations() async {
-    var result = await server.send("search.getElementDeclarations", null);
+  Future<SearchGetElementDeclarationsResult> sendSearchGetElementDeclarations(
+      {String pattern, int maxResults}) async {
+    var params = new SearchGetElementDeclarationsParams(
+            pattern: pattern, maxResults: maxResults)
+        .toJson();
+    var result = await server.send("search.getElementDeclarations", params);
     ResponseDecoder decoder = new ResponseDecoder(null);
     return new SearchGetElementDeclarationsResult.fromJson(
         decoder, 'result', result);
diff --git a/pkg/analysis_server/test/integration/support/protocol_matchers.dart b/pkg/analysis_server/test/integration/support/protocol_matchers.dart
index 38017870ccc..973f9a56eb5 100644
--- a/pkg/analysis_server/test/integration/support/protocol_matchers.dart
+++ b/pkg/analysis_server/test/integration/support/protocol_matchers.dart
@@ -2665,8 +2665,15 @@ final Matcher isSearchFindTopLevelDeclarationsResult = new LazyMatcher(() =>
 
 /**
  * search.getElementDeclarations params
+ *
+ * {
+ *   "pattern": optional String
+ *   "maxResults": optional int
+ * }
  */
-final Matcher isSearchGetElementDeclarationsParams = isNull;
+final Matcher isSearchGetElementDeclarationsParams = new LazyMatcher(() =>
+    new MatchesJsonObject("search.getElementDeclarations params", null,
+        optionalFields: {"pattern": isString, "maxResults": isInt}));
 
 /**
  * search.getElementDeclarations result
diff --git a/pkg/analysis_server/tool/spec/generated/java/AnalysisServer.java b/pkg/analysis_server/tool/spec/generated/java/AnalysisServer.java
index 1c3bc3bd1de..f1f240163d0 100644
--- a/pkg/analysis_server/tool/spec/generated/java/AnalysisServer.java
+++ b/pkg/analysis_server/tool/spec/generated/java/AnalysisServer.java
@@ -733,8 +733,13 @@ public interface AnalysisServer {
    * {@code search.getElementDeclarations}
    *
    * Return top-level and class member declarations.
+   *
+   * @param pattern The regular expression used to match the names of declarations. If this field is
+   *         missing, return all declarations.
+   * @param maxResults The maximum number of declarations to return. If this field is missing, return
+   *         all matching declarations.
    */
-  public void search_getElementDeclarations(GetElementDeclarationsConsumer consumer);
+  public void search_getElementDeclarations(String pattern, int maxResults, GetElementDeclarationsConsumer consumer);
 
   /**
    * {@code search.getTypeHierarchy}
diff --git a/pkg/analysis_server/tool/spec/spec_input.html b/pkg/analysis_server/tool/spec/spec_input.html
index 652818680cb..b979640c6ba 100644
--- a/pkg/analysis_server/tool/spec/spec_input.html
+++ b/pkg/analysis_server/tool/spec/spec_input.html
@@ -1578,6 +1578,22 @@
     <p>
       Return top-level and class member declarations.
     </p>
+    <params>
+      <field name="pattern" optional="true">
+        <ref>String</ref>
+        <p>
+          The regular expression used to match the names of declarations.
+          If this field is missing, return all declarations.
+        </p>
+      </field>
+      <field name="maxResults" optional="true">
+        <ref>int</ref>
+        <p>
+          The maximum number of declarations to return.
+          If this field is missing, return all matching declarations.
+        </p>
+      </field>
+    </params>
     <result>
       <field name="declarations">
         <list>