# Interface PoolableConnectionMXBean

All Known Implementing Classes:
  `PoolableConnection, PoolableManagedConnection`

public interface PoolableConnectionMXBean
Defines the attributes and methods that will be exposed via JMX for `PoolableConnection` instances.

Since:
  2.0

## Method Summary

Modifier and Type
Method
Description
`void`
`clearCachedState()`
Clears the cached state.
`void`
`clearWarnings()`
See `Connection.clearWarnings()`.
`void`
`close()`
Returns this instance to my containing pool.
`boolean`
`getAutoCommit()`
See `Connection.getAutoCommit()`.
`boolean`
`getCacheState()`
Gets whether to cache properties.
`String`
`getCatalog()`
See `Connection.getCatalog()`.
`int`
`getHoldability()`
See `Connection.getHoldability()`.
`String`
`getSchema()`
See `Connection.getSchema()`.
`String`
`getToString()`
Gets the value of the `Object.toString()` method via a bean getter, so it can be read as a property via JMX.
`int`
`getTransactionIsolation()`
See `Connection.getTransactionIsolation()`.
`boolean`
`isClosed()`
See `Connection.isClosed()`.
`boolean`
`isReadOnly()`
See `Connection.isReadOnly()`.
`void`
`reallyClose()`
Closes the underlying `Connection`.
`void`
`setAutoCommit(boolean autoCommit)`
See `Connection.setAutoCommit(boolean)`.
`void`
`setCacheState(boolean cacheState)`
Sets whether to cache properties.
`void`
`setCatalog(String catalog)`
See `Connection.setCatalog(String)`.
`void`
`setHoldability(int holdability)`
See `Connection.setHoldability(int)`.
`void`
`setReadOnly(boolean readOnly)`
See `Connection.setReadOnly(boolean)`.
`void`
`setSchema(String schema)`
See `Connection.setSchema(String)`.
`void`
`setTransactionIsolation(int level)`
See `Connection.setTransactionIsolation(int)`.

## Method Details

### clearCachedState

void clearCachedState()
Clears the cached state. Call when you know that the underlying connection may have been accessed directly.

### clearWarnings

void clearWarnings() throws SQLException
See `Connection.clearWarnings()`.

Throws:
  `SQLException` - See `Connection.clearWarnings()`.

### close

void close() throws SQLException
Returns this instance to my containing pool.

Throws:
  `SQLException` - Throw if this instance cannot be returned.

### getAutoCommit

boolean getAutoCommit() throws SQLException
See `Connection.getAutoCommit()`.

Returns:
  See `Connection.getAutoCommit()`.
Throws:
  `SQLException` - See `Connection.getAutoCommit()`.

### getCacheState

boolean getCacheState()
Gets whether to cache properties. The cached properties are:

- auto-commit
- catalog
- schema
- read-only

Returns:
  The value for the state caching flag.

### getCatalog

String getCatalog() throws SQLException
See `Connection.getCatalog()`.

Returns:
  See `Connection.getCatalog()`.
Throws:
  `SQLException` - See `Connection.getCatalog()`.

### getHoldability

int getHoldability() throws SQLException
See `Connection.getHoldability()`.

Returns:
  See `Connection.getHoldability()`.
Throws:
  `SQLException` - See `Connection.getHoldability()`.

### getSchema

String getSchema() throws SQLException
See `Connection.getSchema()`.

Returns:
  See `Connection.getSchema()`.
Throws:
  `SQLException` - See `Connection.getSchema()`.

### getToString

String getToString()
Gets the value of the `Object.toString()` method via a bean getter, so it can be read as a property via JMX.

Returns:
  the value of the `Object.toString()`.

### getTransactionIsolation

int getTransactionIsolation() throws SQLException
See `Connection.getTransactionIsolation()`.

Returns:
  See `Connection.getTransactionIsolation()`.
Throws:
  `SQLException` - See `Connection.getTransactionIsolation()`.

### isClosed

boolean isClosed() throws SQLException
See `Connection.isClosed()`.

Returns:
  See `Connection.isClosed()`.
Throws:
  `SQLException` - See `Connection.isClosed()`.

### isReadOnly

boolean isReadOnly() throws SQLException
See `Connection.isReadOnly()`.

Returns:
  See `Connection.isReadOnly()`.
Throws:
  `SQLException` - See `Connection.isReadOnly()`.

### reallyClose

void reallyClose() throws SQLException
Closes the underlying `Connection`.

Throws:
  `SQLException` - Thrown if the connection can be closed.

### setAutoCommit

void setAutoCommit(boolean autoCommit) throws SQLException
See `Connection.setAutoCommit(boolean)`.

Parameters:
  `autoCommit` - See `Connection.setAutoCommit(boolean)`.
Throws:
  `SQLException` - See `Connection.setAutoCommit(boolean)`.

### setCacheState

void setCacheState(boolean cacheState)
Sets whether to cache properties. The cached properties are:

- auto-commit
- catalog
- schema
- read-only

Parameters:
  `cacheState` - The new value for the state caching flag

### setCatalog

void setCatalog(String catalog) throws SQLException
See `Connection.setCatalog(String)`.

Parameters:
  `catalog` - See `Connection.setCatalog(String)`.
Throws:
  `SQLException` - See `Connection.setCatalog(String)`.

### setHoldability

void setHoldability(int holdability) throws SQLException
See `Connection.setHoldability(int)`.

Parameters:
  `holdability` - `Connection.setHoldability(int)`.
Throws:
  `SQLException` - See `Connection.setHoldability(int)`.

### setReadOnly

void setReadOnly(boolean readOnly) throws SQLException
See `Connection.setReadOnly(boolean)`.

Parameters:
  `readOnly` - See `Connection.setReadOnly(boolean)`.
Throws:
  `SQLException` - See `Connection.setReadOnly(boolean)`.

### setSchema

void setSchema(String schema) throws SQLException
See `Connection.setSchema(String)`.

Parameters:
  `schema` - See `Connection.setSchema(String)`.
Throws:
  `SQLException` - See `Connection.setSchema(String)`.

### setTransactionIsolation

void setTransactionIsolation(int level) throws SQLException
See `Connection.setTransactionIsolation(int)`.

Parameters:
  `level` - See `Connection.setTransactionIsolation(int)`.
Throws:
  `SQLException` - See `Connection.setTransactionIsolation(int)`.