diff --git a/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java b/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
index fc8e07025e..552a669cce 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidAbstractDataSource.java
@@ -113,6 +113,7 @@ public abstract class DruidAbstractDataSource implements DruidAbstractDataSource
     private boolean                                                                          testOnReturn                              = DEFAULT_TEST_ON_RETURN;
     private boolean                                                                          testWhileIdle                             = DEFAULT_WHILE_IDLE;
     protected boolean                                                                        poolPreparedStatements                    = false;
+    protected int                                                                            maxPoolPreparedStatementPerConnectionSize              = -1;
 
     protected boolean                                                                        inited                                    = false;
 
@@ -163,12 +164,20 @@ public abstract class DruidAbstractDataSource implements DruidAbstractDataSource
 
     protected long                                                                           id;
 
-    protected Date                                                                             createdTime;
+    protected Date                                                                           createdTime;
 
     public long getDupCloseCount() {
         return dupCloseCount.get();
     }
 
+    public int getMaxPoolPreparedStatementPerConnectionSize() {
+        return maxPoolPreparedStatementPerConnectionSize;
+    }
+
+    public void setMaxPoolPreparedStatementPerConnectionSize(int maxPoolPreparedStatementPerConnectionSize) {
+        this.maxPoolPreparedStatementPerConnectionSize = maxPoolPreparedStatementPerConnectionSize;
+    }
+
     public void incrementDupCloseCount() {
         dupCloseCount.incrementAndGet();
     }
@@ -869,7 +878,8 @@ public abstract class DruidAbstractDataSource implements DruidAbstractDataSource
         }
     }
 
-    public abstract void handleConnectionException(PoolableConnection pooledConnection, Throwable t) throws SQLException;
+    public abstract void handleConnectionException(PoolableConnection pooledConnection, Throwable t)
+                                                                                                    throws SQLException;
 
     protected abstract void recycle(PoolableConnection pooledConnection) throws SQLException;
 
@@ -1253,14 +1263,14 @@ public abstract class DruidAbstractDataSource implements DruidAbstractDataSource
     public long getID() {
         return this.id;
     }
-    
+
     public Date getCreatedTime() {
         return createdTime;
     }
-    
+
     public abstract int getRawDriverMajorVersion();
-    
+
     public abstract int getRawDriverMinorVersion();
-    
+
     public abstract String getProperties();
 }
diff --git a/src/main/java/com/alibaba/druid/pool/DruidDataSourceC3P0Adapter.java b/src/main/java/com/alibaba/druid/pool/DruidDataSourceC3P0Adapter.java
index cc7a0ed347..931e6894dd 100644
--- a/src/main/java/com/alibaba/druid/pool/DruidDataSourceC3P0Adapter.java
+++ b/src/main/java/com/alibaba/druid/pool/DruidDataSourceC3P0Adapter.java
@@ -216,6 +216,14 @@ public class DruidDataSourceC3P0Adapter implements DataSource, DruidDataSourceC3
         return getNumBusyConnections();
     }
 
+    public int getMaxStatementsPerConnection() {
+        return dataSource.getMaxPoolPreparedStatementPerConnectionSize();
+    }
+
+    public void setMaxStatementsPerConnection(int maxStatementsPerConnection) {
+        dataSource.setMaxPoolPreparedStatementPerConnectionSize(maxStatementsPerConnection);
+    }
+
     // /////////////////
 
     @Override
@@ -245,7 +253,6 @@ public class DruidDataSourceC3P0Adapter implements DataSource, DruidDataSourceC3
 
     // ///////////////
 
-    private int     maxStatementsPerConnection;
     private String  overrideDefaultUser;
     private String  overrideDefaultPassword;
     private int     propertyCycle;
@@ -275,14 +282,6 @@ public class DruidDataSourceC3P0Adapter implements DataSource, DruidDataSourceC3
         this.maxStatements = maxStatements;
     }
 
-    public int getMaxStatementsPerConnection() {
-        return maxStatementsPerConnection;
-    }
-
-    public void setMaxStatementsPerConnection(int maxStatementsPerConnection) {
-        this.maxStatementsPerConnection = maxStatementsPerConnection;
-    }
-
     public String getConnectionTesterClassName() {
         return connectionTesterClassName;
     }
diff --git a/src/main/java/com/alibaba/druid/pool/StatementCacheAlgorithm.java b/src/main/java/com/alibaba/druid/pool/StatementCacheAlgorithm.java
new file mode 100644
index 0000000000..bc7d2db657
--- /dev/null
+++ b/src/main/java/com/alibaba/druid/pool/StatementCacheAlgorithm.java
@@ -0,0 +1,5 @@
+package com.alibaba.druid.pool;
+
+public enum StatementCacheAlgorithm {
+    LRU, Fixed
+}