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https://issues.apache.org/jira/browse/DERBY-3946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12840194#action_12840194
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Rick Hillegas commented on DERBY-3946:
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Hi Ciu,
ASTParser simply defers its work to the treePrint() methods of the nodes
themselves. The nodes are retrieved using a visitor pattern. To see how this
works, take a look at the TreeWalker program attached to this JIRA. TreeWalker
is another implementation of Visitor. Regards-Rick
> Provide support for using the Derby parser to generate Abstract Syntax Trees
> ----------------------------------------------------------------------------
>
> Key: DERBY-3946
> URL: https://issues.apache.org/jira/browse/DERBY-3946
> Project: Derby
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 10.5.1.1
> Reporter: Rick Hillegas
> Attachments: ASTParser.java, ASTParser.java, ASTParser.java,
> derby-3946-01-aa-standaloneParser.diff, TreeWalker.java, TreeWalker.java
>
>
> Users would like to be able to use the Derby parser to produce query trees
> without actually running the queries on Derby.
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