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https://issues.apache.org/jira/browse/HBASE-15233?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16576457#comment-16576457
]
Anni Du commented on HBASE-15233:
---------------------------------
Suppose we want to convert b to bytes, and we want to reuse it, what's the
difference between
```
byte reuse = new byte[Byte.SIZEOF_LONG]
reuse = Bytes.toBytes(b)
```
and
```
byte reuse = new byte[Byte.SIZEOF_LONG]
Bytes.toBytes(b,reuse)
```
> Bytes.toBytes() methods should allow arrays to be re-used
> ----------------------------------------------------------
>
> Key: HBASE-15233
> URL: https://issues.apache.org/jira/browse/HBASE-15233
> Project: HBase
> Issue Type: Improvement
> Components: API
> Affects Versions: 1.1.3
> Reporter: Jean-Marc Spaggiari
> Assignee: Michael Ernest
> Priority: Minor
> Labels: beginner
>
> Today we have this:
> {code}
> public static byte[] toBytes(long val) {
> byte [] b = new byte[8];
> for (int i = 7; i > 0; i--) {
> b[i] = (byte) val;
> val >>>= 8;
> }
> b[0] = (byte) val;
> return b;
> }
> {code}
> might be nice to also have this:
> {code}
> public static byte[] toBytes(long val, byte[] reuse) {
> for (int i = 7; i > 0; i--) {
> reuse[i] = (byte) val;
> val >>>= 8;
> }
> reuse[0] = (byte) val;
> return reuse;
> }
> {code}
> Same for all the other Bytes.toBytes() methods.
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