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java.lang.Objectbiz.hammurapi.dataflow.DataPump
public class DataPump
Performs multi-threaded data pumping between data sources and sinks. Converts data item types as necessary.
Nested Class Summary | |
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protected class |
DataPump.DataSinkProxy
Blocks sources when stopped. |
Constructor Summary | |
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DataPump()
|
Method Summary | |
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void |
addConnection(DataSource source,
DataSink sink)
Adds connection to be processed. |
protected void |
connect(DataSource source,
DataPump.DataSinkProxy sink)
Invoked in start() to establish connection between source and sink. |
protected java.lang.Object |
convert(java.lang.Object source,
java.lang.Class targetType)
Converts data item to expected target type. |
protected Data |
createData(java.util.Map newValues,
Data chain)
Creates new data with return values or error. |
protected void |
disconnect(DataSource source,
DataPump.DataSinkProxy sink)
Invoked in stop() to terminate connection between source and sink. |
void |
join()
This method block until all pumping jobs finish execution. |
protected Data |
passData(Data data,
DataItemInfo[] sinkInfo)
Passes data from source to sink adjusting data types. |
protected void |
postJob(java.lang.Runnable job)
Executes job either in the current thread or in a worker thread. |
void |
setOwner(java.lang.Object owner)
|
void |
setWorker(biz.hammurapi.util.Worker worker)
Worker to execute pumping jobs. |
void |
start()
Starts data pumping. |
void |
stop()
Stops/pauses data pumping. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public DataPump()
Method Detail |
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public void setOwner(java.lang.Object owner)
setOwner
in interface biz.hammurapi.config.Component
public void setWorker(biz.hammurapi.util.Worker worker)
worker
- public void addConnection(DataSource source, DataSink sink)
source
- sink
- protected void connect(DataSource source, DataPump.DataSinkProxy sink)
source
- sink
- protected void disconnect(DataSource source, DataPump.DataSinkProxy sink)
source
- sink
- public void start()
start
in interface biz.hammurapi.config.Component
public void stop()
stop
in interface biz.hammurapi.config.Component
protected Data passData(Data data, DataItemInfo[] sinkInfo)
data
- sinkInfo
-
protected java.lang.Object convert(java.lang.Object source, java.lang.Class targetType)
source
- targetType
-
protected Data createData(java.util.Map newValues, Data chain)
newValues
- chain
-
public void join() throws java.lang.InterruptedException
java.lang.InterruptedException
protected void postJob(java.lang.Runnable job)
job
-
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