src/org/objectweb/cjdbc/common/monitor/cache/AbstractCacheStatsDataCollector.java

説明を見る。

package org.objectweb.cjdbc.common.monitor.cache;

import org.objectweb.cjdbc.common.exceptions.DataCollectorException;
import org.objectweb.cjdbc.common.exceptions.ExceptionTypes;
import org.objectweb.cjdbc.common.monitor.AbstractDataCollector;
import org.objectweb.cjdbc.controller.cache.result.AbstractResultCache;
import org.objectweb.cjdbc.controller.core.Controller;
import org.objectweb.cjdbc.controller.virtualdatabase.VirtualDatabase;

public abstract class AbstractCacheStatsDataCollector
    extends
      AbstractDataCollector
{
  private String virtualDatabaseName;

  public AbstractCacheStatsDataCollector(String virtualDatabaseName)
  {
    super();
    this.virtualDatabaseName = virtualDatabaseName;
  }

  public long collectValue() throws DataCollectorException
  {
    VirtualDatabase vdb = ((Controller)controller).getVirtualDatabase(
        virtualDatabaseName);
    AbstractResultCache cache = vdb.getRequestManager().getResultCache();
    if (cache == null)
      throw new DataCollectorException(ExceptionTypes.NO_CACHE_ENABLED);
    return this.getValue(cache);
  }

  public abstract long getValue(Object cache);
  
  

  public String getTargetName()
  {
    return virtualDatabaseName;
  }
}

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