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java.lang.Objectde.unihalle.informatik.Alida.batch.ALDBatchInputManager
public abstract class ALDBatchInputManager
Class to manage data inputs in batch processing with operators.
Field Summary | |
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protected static boolean |
debug
For internal debugging purposes only. |
protected java.util.HashMap<java.lang.Class<?>,java.lang.String> |
mapTable
Hashtable containing mappings of datatypes to provider classes. |
private static java.lang.String |
providedInputClassesMethodName
Name of the method which returns all classes supported. |
Constructor Summary | |
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protected |
ALDBatchInputManager()
Default constructor. |
Method Summary | |
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ALDBatchInputIterator |
getProvider(java.lang.Class<?> cl,
java.lang.Class<?> interfaceRequired)
Method to return an instance of the batch input provider for given class. |
protected static java.util.HashMap<java.lang.Class<?>,java.lang.String> |
initMapTable(java.lang.Class<?> interfaceRequired)
Method to initialize the hashmap which registers batch input providers. |
boolean |
providerAvailable(java.lang.Class<?> cl)
Check if a provider has registered for the given class. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected static boolean debug
protected java.util.HashMap<java.lang.Class<?>,java.lang.String> mapTable
private static java.lang.String providedInputClassesMethodName
Constructor Detail |
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protected ALDBatchInputManager()
Method Detail |
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public ALDBatchInputIterator getProvider(java.lang.Class<?> cl, java.lang.Class<?> interfaceRequired) throws ALDBatchIOManagerException
A provider is returned which implements the requested interface
interfaceRequired
(which is by itself required to
implement ALDBatchInputIterator).
cl
- Class to get a provider for.interfaceRequired
- Interface needed to be implemented by provider.
ALDDataIOManagerException
ALDBatchIOManagerException
protected static java.util.HashMap<java.lang.Class<?>,java.lang.String> initMapTable(java.lang.Class<?> interfaceRequired)
interfaceRequired
- Interface of which providers are registered.public boolean providerAvailable(java.lang.Class<?> cl)
Note that this function does not try to instantiate a provider, thus, just a flat check is done, and on lateron requesting a provider object errors are still possible.
cl
- Requested class.
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