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From "Alex Newman (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6047) Put.has() can't determine result correctly
Date Tue, 22 May 2012 22:39:41 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13281260#comment-13281260
] 

Alex Newman commented on HBASE-6047:
------------------------------------

think i got your comments
                
> Put.has() can't determine result correctly
> ------------------------------------------
>
>                 Key: HBASE-6047
>                 URL: https://issues.apache.org/jira/browse/HBASE-6047
>             Project: HBase
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 0.92.1
>            Reporter: Wang Qiang
>            Assignee: Alex Newman
>         Attachments: 0001-HBASE-6047.-Put.has-can-t-determine-result-correctly-v2.patch,
0001-HBASE-6047.-Put.has-can-t-determine-result-correctly.patch, PutTest.java
>
>
> the public method 'has(byte [] family, byte [] qualifier)' internally invoked the private
method 'has(byte [] family, byte [] qualifier, long ts, byte [] value, boolean ignoreTS, boolean
ignoreValue)' with 'value=new byte[0], ignoreTS=true, ignoreValue=true', but there's a logical
error in the body, it'll enter the block
> {code}
> else if (ignoreValue) {
>       for (KeyValue kv: list) {
>         if (Arrays.equals(kv.getFamily(), family) && Arrays.equals(kv.getQualifier(),
qualifier)
>             && kv.getTimestamp() == ts) {
>           return true;
>         }
>       }
>     }
> {code}
> the expression 'kv.getTimestamp() == ts' in the if conditions should only exist when
'ignoreTS=false', otherwise, the following code will return false!
> {code}
> Put put = new Put(Bytes.toBytes("row-01"));
> put.add(Bytes.toBytes("family-01"), Bytes.toBytes("qualifier-01"),
> 				1234567L, Bytes.toBytes("value-01"));
> System.out.println(put.has(Bytes.toBytes("family-01"),
> 				Bytes.toBytes("qualifier-01")));
> {code}

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