EAGLE-1088: Change the inconsistent method name find

make java method more friendly

Author: @BruceKuiLiu
Reviewer: @yonzhang2012 yonzhang2012@gmail.com

Closes: #991
diff --git a/eagle-core/eagle-query/eagle-query-base/src/main/java/org/apache/eagle/query/aggregate/SortFieldOrderType.java b/eagle-core/eagle-query/eagle-query-base/src/main/java/org/apache/eagle/query/aggregate/SortFieldOrderType.java
index 30a51d6..c020dfa 100644
--- a/eagle-core/eagle-query/eagle-query-base/src/main/java/org/apache/eagle/query/aggregate/SortFieldOrderType.java
+++ b/eagle-core/eagle-query/eagle-query-base/src/main/java/org/apache/eagle/query/aggregate/SortFieldOrderType.java
@@ -51,7 +51,7 @@
     public static AggregateParams.SortFieldOrder matchAll(String sortFieldOrder) {
         for (SortFieldOrderType type : SortFieldOrderType.values()) {
             SortFieldOrderTypeMatcher m = type.matcher(sortFieldOrder);
-            if (m.find()) {
+            if (m.isMatched()) {
                 return m.sortFieldOrder();
             }
         }
diff --git a/eagle-core/eagle-query/eagle-query-base/src/main/java/org/apache/eagle/query/aggregate/SortFieldOrderTypeMatcher.java b/eagle-core/eagle-query/eagle-query-base/src/main/java/org/apache/eagle/query/aggregate/SortFieldOrderTypeMatcher.java
index 8ef5c28..2f4e689 100644
--- a/eagle-core/eagle-query/eagle-query-base/src/main/java/org/apache/eagle/query/aggregate/SortFieldOrderTypeMatcher.java
+++ b/eagle-core/eagle-query/eagle-query-base/src/main/java/org/apache/eagle/query/aggregate/SortFieldOrderTypeMatcher.java
@@ -28,7 +28,7 @@
         }
     }
 
-    public boolean find() {
+    public boolean isMatched() {
         return this.matched;
     }