ProxyConnection (Apache Tomcat 8.0.53 API Documentation)

java.lang.Object
- org.apache.tomcat.jdbc.pool.JdbcInterceptor
- - org.apache.tomcat.jdbc.pool.ProxyConnection

All Implemented Interfaces:

java.lang.reflect.InvocationHandler
```
public class ProxyConnection
extends JdbcInterceptor
```
A ProxyConnection object is the bottom most interceptor that wraps an object of type PooledConnection. The ProxyConnection intercepts three methods:
- Connection.close() - returns the connection to the pool. May be called multiple times.
- Object.toString() - returns a custom string for this object
- PooledConnection.getConnection() - returns the underlying connection
By default method comparisons is done on a String reference level, unless the PoolConfiguration.setUseEquals(boolean) has been called with a true argument.

Field Summary

Fields
Modifier and Type Field and Description

protected PooledConnection connection

protected ConnectionPool pool
- Fields inherited from class org.apache.tomcat.jdbc.pool.JdbcInterceptor
  CLOSE_VAL, EQUALS_VAL, GETCONNECTION_VAL, HASHCODE_VAL, ISCLOSED_VAL, ISVALID_VAL, ISWRAPPERFOR_VAL, properties, TOSTRING_VAL, UNWRAP_VAL

Fields
Modifier and Type	Field and Description
`protected PooledConnection`	`connection`
`protected ConnectionPool`	`pool`

Constructor Summary

Constructors
Modifier Constructor and Description

protected ProxyConnection(ConnectionPool parent, PooledConnection con, boolean useEquals)

Constructors
Modifier	Constructor and Description
`protected`	`ProxyConnection(ConnectionPool parent, PooledConnection con, boolean useEquals)`

Method Summary

Methods
Modifier and Type	Method and Description
`PooledConnection`	`getConnection()`
`PooledConnection`	`getDelegateConnection()`
`ConnectionPool`	`getParentPool()`
`ConnectionPool`	`getPool()`
`java.lang.Object`	`invoke(java.lang.Object proxy, java.lang.reflect.Method method, java.lang.Object[] args)` Gets invoked each time an operation on `Connection` is invoked.
`boolean`	`isClosed()`
`boolean`	`isWrapperFor(java.lang.Class<?> iface)`
`void`	`reset(ConnectionPool parent, PooledConnection con)` Gets called each time the connection is borrowed from the pool This means that if an interceptor holds a reference to the connection the interceptor can be reused for another connection.
`void`	`setConnection(PooledConnection connection)`
`void`	`setPool(ConnectionPool pool)`
`java.lang.String`	`toString()`
`java.lang.Object`	`unwrap(java.lang.Class<?> iface)`

Methods inherited from class org.apache.tomcat.jdbc.pool.JdbcInterceptor
compare, compare, disconnected, getNext, getProperties, isUseEquals, poolClosed, poolStarted, setNext, setProperties, setUseEquals

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

connection
```
protected PooledConnection connection
```

pool
```
protected ConnectionPool pool
```

Constructor Detail

ProxyConnection

protected ProxyConnection(ConnectionPool parent,
               PooledConnection con,
               boolean useEquals)

Method Detail
- getConnection
```
public PooledConnection getConnection()
```
- setConnection
```
public void setConnection(PooledConnection connection)
```
- getPool
```
public ConnectionPool getPool()
```
- setPool
```
public void setPool(ConnectionPool pool)
```
- reset
```
public void reset(ConnectionPool parent,
         PooledConnection con)
```
  Description copied from class: JdbcInterceptor
  
  Gets called each time the connection is borrowed from the pool This means that if an interceptor holds a reference to the connection the interceptor can be reused for another connection.
  This method may be called with null as both arguments when we are closing down the connection.
  
  Specified by:
  
  reset in class JdbcInterceptor
  
  Parameters:
  parent - - the connection pool owning the connection
  con - - the pooled connection
- isWrapperFor
```
public boolean isWrapperFor(java.lang.Class<?> iface)
```
- unwrap
```
public java.lang.Object unwrap(java.lang.Class<?> iface)
                        throws java.sql.SQLException
```
  Throws:
  
  java.sql.SQLException
- invoke
```
public java.lang.Object invoke(java.lang.Object proxy,
                      java.lang.reflect.Method method,
                      java.lang.Object[] args)
                        throws java.lang.Throwable
```
  Description copied from class: JdbcInterceptor
  
  Gets invoked each time an operation on Connection is invoked.
  
  Specified by:
  
  invoke in interface java.lang.reflect.InvocationHandler
  
  Overrides:
  
  invoke in class JdbcInterceptor
  
  Throws:
  
  java.lang.Throwable
- isClosed
```
public boolean isClosed()
```
- getDelegateConnection
```
public PooledConnection getDelegateConnection()
```
- getParentPool
```
public ConnectionPool getParentPool()
```
- toString
```
public java.lang.String toString()
```
  Overrides:
  
  toString in class java.lang.Object

Class ProxyConnection

Field Summary

Fields inherited from class org.apache.tomcat.jdbc.pool.JdbcInterceptor

Constructor Summary

Method Summary

Methods inherited from class org.apache.tomcat.jdbc.pool.JdbcInterceptor

Methods inherited from class java.lang.Object

Field Detail

connection

pool

Constructor Detail

ProxyConnection

Method Detail

getConnection

setConnection

getPool

setPool

reset

isWrapperFor

unwrap

invoke

isClosed

getDelegateConnection

getParentPool

toString