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| package org.apache.tapestry.engine.state; |
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| import java.util.HashMap; |
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| import java.util.Iterator; |
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| import java.util.Map; |
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| import org.apache.hivemind.PoolManageable; |
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| public class ApplicationStateManagerImpl implements ApplicationStateManager, PoolManageable |
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| { |
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| private Map _stateObjects = new HashMap(); |
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| private StateObjectManagerRegistry _registry; |
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| public void activateService()
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| { |
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| } |
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| public void passivateService()
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| { |
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| _stateObjects.clear();
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| } |
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| public boolean exists(String objectName)
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| { |
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| return _stateObjects.containsKey(objectName) || _registry.get(objectName).exists();
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| } |
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| public Object get(String objectName)
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| { |
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| Object result = _stateObjects.get(objectName);
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| if (result == null)
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| { |
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| result = _registry.get(objectName).get();
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| _stateObjects.put(objectName, result);
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| } |
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| return result;
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| } |
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| public void store(String objectName, Object stateObject)
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| { |
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| _registry.get(objectName).store(stateObject);
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| _stateObjects.put(objectName, stateObject);
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| } |
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| public void flush()
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| { |
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| Iterator i = _stateObjects.entrySet().iterator();
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| while (i.hasNext())
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| { |
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| Map.Entry e = (Map.Entry) i.next();
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| String objectName = (String) e.getKey();
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| Object stateObject = e.getValue();
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| _registry.get(objectName).store(stateObject);
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| } |
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| } |
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| public void setRegistry(StateObjectManagerRegistry registry)
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| { |
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| _registry = registry;
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| } |
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| } |