事务时间直方图

git-svn-id: http://code.alibabatech.com/svn/druid/trunk@853 b9813039-fb51-4c41-a8b9-e21c2acb5095

src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java

@@ -186,6 +186,10 @@ public abstract class DruidAbstractDataSource extends WrapperAdapter implements
     public Histogram getTransactionHistogram() {
         return transactionHistogram;
     }
+    
+    public long[] getTransactionHistogramValues() {
+        return transactionHistogram.toArray();
+    }
 
     public long getCommitCount() {
         return commitCount.get();

src/main/java/com/alibaba/druid/pool/DruidAbstractDataSourceMBean.java

@@ -111,4 +111,6 @@ public interface DruidAbstractDataSourceMBean {
     Date getCreatedTime();
     
     String getValidConnectionCheckerClassName();
+    
+    long[] getTransactionHistogramValues();
 }