decrease memory used

2023-03-04 19:17:16 +00:00 · 2013-06-09 22:51:38 +08:00
parent 2a48c90450
commit 0609ce5d26
8 changed files with 7744 additions and 7700 deletions
@@ -1,57 +1,67 @@
-/*
- * Copyright 1999-2011 Alibaba Group Holding Ltd.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-package com.alibaba.druid.sql.ast.statement;
-
-import java.util.ArrayList;
-import java.util.List;
-
-import com.alibaba.druid.sql.ast.SQLHint;
-import com.alibaba.druid.sql.ast.SQLObjectImpl;
-
-public abstract class SQLTableSourceImpl extends SQLObjectImpl implements SQLTableSource {
-
-    private static final long serialVersionUID = 1L;
-
-    protected String          alias;
-
-    protected List<SQLHint>   hints            = new ArrayList<SQLHint>(2);
-
-    public SQLTableSourceImpl(){
-
-    }
-
-    public SQLTableSourceImpl(String alias){
-
-        this.alias = alias;
-    }
-
-    public String getAlias() {
-        return this.alias;
-    }
-
-    public void setAlias(String alias) {
-        this.alias = alias;
-    }
-
-    public List<SQLHint> getHints() {
-        return hints;
-    }
-
-    public void setHints(List<SQLHint> hints) {
-        this.hints = hints;
-    }
-
-}
+/*
+ * Copyright 1999-2011 Alibaba Group Holding Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.alibaba.druid.sql.ast.statement;
+
+import java.util.ArrayList;
+import java.util.List;
+
+import com.alibaba.druid.sql.ast.SQLHint;
+import com.alibaba.druid.sql.ast.SQLObjectImpl;
+
+public abstract class SQLTableSourceImpl extends SQLObjectImpl implements SQLTableSource {
+
+    private static final long serialVersionUID = 1L;
+
+    protected String          alias;
+
+    protected List<SQLHint>   hints;
+
+    public SQLTableSourceImpl(){
+
+    }
+
+    public SQLTableSourceImpl(String alias){
+
+        this.alias = alias;
+    }
+
+    public String getAlias() {
+        return this.alias;
+    }
+
+    public void setAlias(String alias) {
+        this.alias = alias;
+    }
+    
+    public int getHintsSize() {
+        if (hints == null) {
+            return 0;
+        }
+        
+        return hints.size();
+    }
+
+    public List<SQLHint> getHints() {
+        if (hints == null) {
+            hints = new ArrayList<SQLHint>(2);
+        }
+        return hints;
+    }
+
+    public void setHints(List<SQLHint> hints) {
+        this.hints = hints;
+    }
+}