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Java Source Code / Java Documentation » J2EE » spring framework 2.5 » org.springframework.jdbc.datasource.lookup

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.springframework.jdbc.datasource .AbstractDataSource

org.springframework.jdbc.datasource.lookup .AbstractRoutingDataSource

All known Subclasses:   org.springframework.jdbc.datasource.lookup .IsolationLevelDataSourceRouter,
AbstractRoutingDataSource
abstract public class AbstractRoutingDataSource extends AbstractDataSource implements InitializingBean(Code)
Abstract DataSource implementation that routes AbstractRoutingDataSource.getConnection() calls to one of various target DataSources based on a lookup key. The latter is usually (but not necessarily) determined through some thread-bound transaction context.
author:
   Juergen Hoeller
since:
   2.0.1
See Also:   AbstractRoutingDataSource.setTargetDataSources
See Also:   AbstractRoutingDataSource.setDefaultTargetDataSource
See Also:   AbstractRoutingDataSource.determineCurrentLookupKey()

Method Summary
public void afterPropertiesSet()

abstract protected Object determineCurrentLookupKey()
     Determine the current lookup key.
protected DataSource determineTargetDataSource()
     Retrieve the current target DataSource.
public Connection getConnection()

public Connection getConnection(String username, String password)

protected DataSource resolveSpecifiedDataSource(Object dataSource)
     Resolve the specified data source object into a DataSource instance.
protected Object resolveSpecifiedLookupKey(Object lookupKey)
     Resolve the given lookup key object, as specified in the AbstractRoutingDataSource.setTargetDataSources targetDataSources map, into the actual lookup key to be used for matching with the AbstractRoutingDataSource.determineCurrentLookupKey() current lookup key .
public void setDataSourceLookup(DataSourceLookup dataSourceLookup)
     Set the DataSourceLookup implementation to use for resolving data source name Strings in the AbstractRoutingDataSource.setTargetDataSources targetDataSources map.
public void setDefaultTargetDataSource(Object defaultTargetDataSource)
     Specify the default target DataSource, if any.
public void setTargetDataSources(Map targetDataSources)
     Specify the map of target DataSources, with the lookup key as key. The mapped value can either be a corresponding javax.sql.DataSource instance or a data source name String (to be resolved via a AbstractRoutingDataSource.setDataSourceLookup DataSourceLookup .
The key can be of arbitrary type; this class implements the generic lookup process only.

Method Detail
afterPropertiesSet
public void afterPropertiesSet()(Code)

determineCurrentLookupKey
abstract protected Object determineCurrentLookupKey()(Code)
Determine the current lookup key. This will typically be implemented to check a thread-bound transaction context.
Allows for arbitrary keys. The returned key needs to match the stored lookup key type, as resolved by the AbstractRoutingDataSource.resolveSpecifiedLookupKey method.

determineTargetDataSource
protected DataSource determineTargetDataSource()(Code)
Retrieve the current target DataSource. Determines the AbstractRoutingDataSource.determineCurrentLookupKey() current lookup key , performs a lookup in the AbstractRoutingDataSource.setTargetDataSources targetDataSources map, falls back to the specified AbstractRoutingDataSource.setDefaultTargetDataSource default target DataSource if necessary.
See Also:   AbstractRoutingDataSource.determineCurrentLookupKey()

getConnection
public Connection getConnection() throws SQLException(Code)

getConnection
public Connection getConnection(String username, String password) throws SQLException(Code)

resolveSpecifiedDataSource
protected DataSource resolveSpecifiedDataSource(Object dataSource) throws IllegalArgumentException(Code)
Resolve the specified data source object into a DataSource instance.
The default implementation handles DataSource instances and data source names (to be resolved via a AbstractRoutingDataSource.setDataSourceLookup DataSourceLookup ).
Parameters:
  dataSource - the data source value object as specified in theAbstractRoutingDataSource.setTargetDataSources targetDataSources map the resolved DataSource (never null)
throws:
  IllegalArgumentException - in case of an unsupported value type

resolveSpecifiedLookupKey
protected Object resolveSpecifiedLookupKey(Object lookupKey)(Code)
Resolve the given lookup key object, as specified in the AbstractRoutingDataSource.setTargetDataSources targetDataSources map, into the actual lookup key to be used for matching with the AbstractRoutingDataSource.determineCurrentLookupKey() current lookup key .
The default implementation simply returns the given key as-is.
Parameters:
  lookupKey - the lookup key object as specified by the user the lookup key as needed for matching

setDataSourceLookup
public void setDataSourceLookup(DataSourceLookup dataSourceLookup)(Code)
Set the DataSourceLookup implementation to use for resolving data source name Strings in the AbstractRoutingDataSource.setTargetDataSources targetDataSources map.
Default is a JndiDataSourceLookup , allowing the JNDI names of application server DataSources to be specified directly.

setDefaultTargetDataSource
public void setDefaultTargetDataSource(Object defaultTargetDataSource)(Code)
Specify the default target DataSource, if any. The mapped value can either be a corresponding javax.sql.DataSource instance or a data source name String (to be resolved via a AbstractRoutingDataSource.setDataSourceLookup DataSourceLookup .
This DataSource will be used as target if none of the keyed AbstractRoutingDataSource.setTargetDataSources targetDataSources match the AbstractRoutingDataSource.determineCurrentLookupKey() current lookup key}.

setTargetDataSources
public void setTargetDataSources(Map targetDataSources)(Code)
Specify the map of target DataSources, with the lookup key as key. The mapped value can either be a corresponding javax.sql.DataSource instance or a data source name String (to be resolved via a AbstractRoutingDataSource.setDataSourceLookup DataSourceLookup .
The key can be of arbitrary type; this class implements the generic lookup process only. The concrete key representation will be handled by AbstractRoutingDataSource.resolveSpecifiedLookupKey(Object) and AbstractRoutingDataSource.determineCurrentLookupKey() .

Fields inherited from org.springframework.jdbc.datasource.AbstractDataSource
final protected Log logger(Code)(Java Doc)

Methods inherited from org.springframework.jdbc.datasource.AbstractDataSource
public PrintWriter getLogWriter()(Code)(Java Doc)
public int getLoginTimeout() throws SQLException(Code)(Java Doc)
public boolean isWrapperFor(Class iface) throws SQLException(Code)(Java Doc)
public void setLogWriter(PrintWriter pw) throws SQLException(Code)(Java Doc)
public void setLoginTimeout(int timeout) throws SQLException(Code)(Java Doc)
public Object unwrap(Class iface) throws SQLException(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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