Thanks . I change ss to bytebufferserializer. It works fine.
From: Raoyixuan (Shandy) [mailto:raoyix...@huawei.com] Sent: Thursday, February 17, 2011 11:16 AM To: user@cassandra.apache.org Subject: RE: indexedslicesQuery class error I modify it as below StringSerializer ss = StringSerializer.get(); IndexedSlicesQuery<String, String, String> indexedSlicesQuery = HFactory.createIndexedSlicesQuery(keyspace, ss, ss, ss); indexedSlicesQuery.setColumnNames("full_name", "birth_date", "state"); indexedSlicesQuery.addGtExpression("birth_date", longSerializer.toByteBuffer (1970L)); indexedSlicesQuery.addEqualsExpression("state", stringSerializer.toByteBuffer("UT")); indexedSlicesQuery.setColumnFamily("users"); indexedSlicesQuery.setStartKey(""); QueryResult<OrderedRows<String, String, String>> result = indexedSlicesQuery.execute(); It shows the error The method addGtExpression(String,String) in the type IndexedSlicesQuery<String,String,String> is not applicable for the arguments(String,ByteBuffer) From: Roshan Dawrani [mailto:roshandawr...@gmail.com] Sent: Thursday, February 17, 2011 10:54 AM To: user@cassandra.apache.org Subject: Re: indexedslicesQuery class error You didn't see the previously given link? @see: https://groups.google.com/group/hector-users/browse_thread/thread/520c5332dedfca4a 2011/2/17 Raoyixuan (Shandy) <raoyix...@huawei.com<mailto:raoyix...@huawei.com>> But my requirement is get the data by birth_date and state , how to achieve it by hector client? From: Roshan Dawrani [mailto:roshandawr...@gmail.com<mailto:roshandawr...@gmail.com>] Sent: Thursday, February 17, 2011 10:48 AM To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: Re: indexedslicesQuery class error addGtEqual??? You are still making the same mistake. You are now saying that your values are going to be long (by passing LS as the valueSerializer), but in addEqualsExpression(), you are passing a String value. 2011/2/17 Raoyixuan (Shandy) <raoyix...@huawei.com<mailto:raoyix...@huawei.com>> Not really. I also tried the code as below: StringSerializer ss = StringSerializer.get(); LongSerializer ls = LongSerializer.get(); IndexedSlicesQuery<String, String, Long> indexedSlicesQuery = HFactory.createIndexedSlicesQuery(keyspace, ss, ss, ls); indexedSlicesQuery.setColumnNames("full_name", "birth_date", "state"); indexedSlicesQuery.addGtExpression("birth_date", 1970L); indexedSlicesQuery.addEqualsExpression("state", "UT"); indexedSlicesQuery.setColumnFamily("users"); indexedSlicesQuery.setStartKey(""); QueryResult<OrderedRows<String, String, Long>> result = indexedSlicesQuery.execute(); It shows the error: The method addGtEqual<Epression(String,Long) in the type IndexedSlicesQuery<String,String,Long> is not applicable for the arguments(String,String) From: Roshan Dawrani [mailto:roshandawr...@gmail.com<mailto:roshandawr...@gmail.com>] Sent: Thursday, February 17, 2011 10:37 AM To: user@cassandra.apache.org<mailto:user@cassandra.apache.org> Subject: Re: indexedslicesQuery class error That's because in createIndexedSlicesQuery(), you have used SS as the valueSerializer, and then in addGtExpression("birth_date", 1970L), you pass a long as the value. @see: https://groups.google.com/group/hector-users/browse_thread/thread/520c5332dedfca4a 2011/2/17 Raoyixuan (Shandy) <raoyix...@huawei.com<mailto:raoyix...@huawei.com>> I do the range query by the hector client when the state and birht_date columns are both indexed, it show the error: The method addGtExpression(String,String) in the type IndexedSlicesQuery<String,String,String> is not applicable for the arguments(String,long) The code is as below: StringSerializer ss = StringSerializer.get(); IndexedSlicesQuery<String, String, String> indexedSlicesQuery = HFactory.createIndexedSlicesQuery(keyspace, ss, ss, ss); indexedSlicesQuery.setColumnNames("full_name", "birth_date", "state"); indexedSlicesQuery.addGtExpression("birth_date", 1970L); indexedSlicesQuery.addEqualsExpression("state", "UT"); indexedSlicesQuery.setColumnFamily("users"); indexedSlicesQuery.setStartKey(""); QueryResult<OrderedRows<String, String, String>> result = indexedSlicesQuery.execute(); 华为技术有限公司 Huawei Technologies Co., Ltd.[Company_logo] Email: raoyix...@huawei.com<mailto:raoyix...@huawei.com> 地址：深圳市龙岗区坂田华为基地 邮编：518129 Huawei Technologies Co., Ltd. Bantian, Longgang District,Shenzhen 518129, P.R.China http://www.huawei.com ________________________________ 本邮件及其附件含有华为公司的保密信息，仅限于发送给上面地址中列出的个人或群组。禁 止任何其他人以任何形式使用（包括但不限于全部或部分地泄露、复制、或散发）本邮件中 的信息。如果您错收了本邮件，请您立即电话或邮件通知发件人并删除本邮件！ This e-mail and its attachments contain confidential information from HUAWEI, which is intended only for the person or entity whose address is listed above. Any use of the information contained herein in any way (including, but not limited to, total or partial disclosure, reproduction, or dissemination) by persons other than the intended recipient(s) is prohibited. If you receive this e-mail in error, please notify the sender by phone or email immediately and delete it! -- Roshan Blog: http://roshandawrani.wordpress.com/ Twitter: @roshandawrani<http://twitter.com/roshandawrani> Skype: roshandawrani -- Roshan Blog: http://roshandawrani.wordpress.com/ Twitter: @roshandawrani<http://twitter.com/roshandawrani> Skype: roshandawrani
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