Examples of com.mongodb.DBCursor.one()

com.mongodb.DBCursor.one()
Returns the first document that matches the query. @return the first matching document @since 2.12

        final DBObject query = new BasicDBObject(TableColumns.JOBEXECUTIONID, inClause);
        query.put(TableColumns.STEPNAME, stepName);
        final DBCursor cursor1 = db.getCollection(TableColumns.STEP_EXECUTION).find(query).sort(
                new BasicDBObject(TableColumns.STEPEXECUTIONID, -1));


        return createStepExecutionFromDBObject(cursor1.one());
    }


    @Override
    public List<PartitionExecutionImpl> getPartitionExecutions(final long stepExecutionId,
                                                               final StepExecutionImpl stepExecution,

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        final DBObject query = new BasicDBObject(TableColumns.JOBEXECUTIONID, inClause);
        query.put(TableColumns.STEPNAME, stepName);
        final DBCursor cursor1 = db.getCollection(TableColumns.STEP_EXECUTION).find(query).sort(
                new BasicDBObject(TableColumns.STEPEXECUTIONID, -1));


        return createStepExecutionFromDBObject(cursor1.one());
    }


    @Override
    public List<PartitionExecutionImpl> getPartitionExecutions(final long stepExecutionId,
                                                               final StepExecutionImpl stepExecution,

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        final DBObject query = new BasicDBObject(TableColumns.JOBEXECUTIONID, inClause);
        query.put(TableColumns.STEPNAME, stepName);
        final DBCursor cursor1 = db.getCollection(TableColumns.STEP_EXECUTION).find(query).sort(
                new BasicDBObject(TableColumns.STEPEXECUTIONID, -1));


        return createStepExecutionFromDBObject(cursor1.one());
    }


    @Override
    public List<PartitionExecutionImpl> getPartitionExecutions(final long stepExecutionId,
                                                               final StepExecutionImpl stepExecution,

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