Examples of javax.jdo.Query.deletePersistentAll()

javax.jdo.Query.deletePersistentAll()
Deletes all the instances of the candidate class that pass the filter. @see #deletePersistentAll() @param parameters for the query @return the number of instances of the candidate class that were deleted @since 2.0

        try
        {
            tx.begin();


            Query query = pm.newQuery( aClass );
            query.deletePersistentAll();


            tx.commit();
        }
        finally
        {

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    Long curTime = System.currentTimeMillis();
    try {
      openTransaction();
      Query query = pm.newQuery(MPartitionEvent.class,"curTime - eventTime > expiryTime");
      query.declareParameters("java.lang.Long curTime, java.lang.Long expiryTime");
      delCnt = query.deletePersistentAll(curTime, expiryTime);
      commited = commitTransaction();
    }
    finally {
      if (!commited) {
        rollbackTransaction();

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  private void dropPartitionsNoTxn(String dbName, String tblName, List<String> partNames) {
    ObjectPair<Query, Map<String, String>> queryWithParams =
        getPartQueryWithParams(dbName, tblName, partNames);
    Query query = queryWithParams.getFirst();
    query.setClass(MPartition.class);
    long deleted = query.deletePersistentAll(queryWithParams.getSecond());
    LOG.debug("Deleted " + deleted + " partition from store");
    query.closeAll();
  }


  /**

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        try
        {
            tx.begin();


            Query query = pm.newQuery( aClass );
            query.deletePersistentAll();


            tx.commit();
        }
        finally
        {

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  private void dropPartitionsNoTxn(String dbName, String tblName, List<String> partNames) {
    ObjectPair<Query, Map<String, String>> queryWithParams =
        getPartQueryWithParams(dbName, tblName, partNames);
    Query query = queryWithParams.getFirst();
    query.setClass(MPartition.class);
    long deleted = query.deletePersistentAll(queryWithParams.getSecond());
    LOG.debug("Deleted " + deleted + " partition from store");
    query.closeAll();
  }


  /**

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    Long curTime = System.currentTimeMillis();
    try {
      openTransaction();
      Query query = pm.newQuery(MPartitionEvent.class,"curTime - eventTime > expiryTime");
      query.declareParameters("java.lang.Long curTime, java.lang.Long expiryTime");
      delCnt = query.deletePersistentAll(curTime, expiryTime);
      commited = commitTransaction();
    }
    finally {
      if (!commited) {
        rollbackTransaction();

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                        builder.append(entry.getKey().getClass().getName()).append(" ");
                        builder.append(entry.getValue());
                        constants.add(entry.getKey());
                    }
                    query.declareParameters(builder.toString());
                    return query.deletePersistentAll(constants.toArray());
                } else {
                    return query.deletePersistentAll();
                }
            }finally{
                query.closeAll();

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                        constants.add(entry.getKey());
                    }
                    query.declareParameters(builder.toString());
                    return query.deletePersistentAll(constants.toArray());
                } else {
                    return query.deletePersistentAll();
                }
            }finally{
                query.closeAll();
            }
        } else {

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            }finally{
                query.closeAll();
            }
        } else {
            try{
                return query.deletePersistentAll();
            }finally{
                query.closeAll();
            }
        }
    }

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    Long curTime = System.currentTimeMillis();
    try {
      openTransaction();
      Query query = pm.newQuery(MPartitionEvent.class,"curTime - eventTime > expiryTime");
      query.declareParameters("java.lang.Long curTime, java.lang.Long expiryTime");
      delCnt = query.deletePersistentAll(curTime, expiryTime);
      commited = commitTransaction();
    }
    finally {
      if (!commited) {
        rollbackTransaction();

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