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https://issues.apache.org/jira/browse/HBASE-1990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790971#action_12790971
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Vaibhav Puranik commented on HBASE-1990:
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The concept of TestHTableGenerics.java is good, but unfortunately it might not
work even for simpler use cases. Let's discuss the following example:
{noformat}
Put<String, String, String, String> put = new Put<String, String, String,
String>("row1");
put.add("family", "stringtest", "stringdata");
ht.put(put.getPut());
{noformat}
The above example forces you to pick a data type for values at the
instantiation of the Put object. But in most cases (at least in our software)
we have different data types in a row such as Long, String, Custom Object etc.
Even a typical relational database table always have multiple data types in a
row.
If you exclude the value and keep the value as byte array, it should be
sufficient for 80% of the use cases. (Even though we have many columns where
the column name is not a string, they are a minority)
> Add methods accepting strings for family/qualifier in client
> -------------------------------------------------------------
>
> Key: HBASE-1990
> URL: https://issues.apache.org/jira/browse/HBASE-1990
> Project: Hadoop HBase
> Issue Type: Improvement
> Components: client
> Affects Versions: 0.20.0
> Reporter: Doug Meil
> Priority: Minor
> Fix For: 0.20.3, 0.21.0
>
> Attachments: TestHTableGenerics.java
>
>
> Consider the following client code...
> byte b[] = result.getValue( Bytes.toBytes("family"),
> Bytes.toBytes("qualifier") );
> put.add( Bytes.toBytes("family"), Bytes.toBytes("qualifer"),
> Bytes.toBytes( "value") );
> ... the requirement to supply family and qualifiers as bytes causes code to
> get cluttered and verbose. At worst, it scares peoples un-necessarily about
> HBase development, and at best, developers inevitably will get tired of doing
> all this casting and then add their own wrapper classes around the HBase
> client to make their code more readable.
> I would like to see something like this in the API...
> byte b[] = result.getValue( "family"), "qualifier" );
> put.add( "family", "qualifer", Bytes.toBytes( "value") );
> ... where the Hbase client can perform the required Bytes.toBytes()
> conversion behind the scenes.
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