Package org.datanucleus.store.rdbms.sql
Class SQLTableAlphaNamer
java.lang.Object
org.datanucleus.store.rdbms.sql.SQLTableAlphaNamer
- All Implemented Interfaces:
SQLTableNamer
SQLTable namer that generates names like A0, B1, C0, ... , Z0, AA0, AB0, ... etc.
Tables are prefixed by a letter based on the table-group they are in, followed by a number
being the number within that table-group.
The candidate table-group will always be prefixed A when not predefined (i.e for JDOQL).
Should handle up to 26x27 combinations (i.e 702). Anyone needing more than that has serious problems, as does
their RDBMS.
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Field Summary
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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptiongetAliasForTable
(SQLStatement stmt, Table table, String groupName) Method to return the alias to use for the specified table.private String
getLettersForNumber
(int number)
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Field Details
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CHARS
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Constructor Details
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SQLTableAlphaNamer
public SQLTableAlphaNamer()
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Method Details
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getAliasForTable
Description copied from interface:SQLTableNamer
Method to return the alias to use for the specified table.- Specified by:
getAliasForTable
in interfaceSQLTableNamer
- Parameters:
stmt
- The statement where we will use the tabletable
- The tablegroupName
- Name of the table group- Returns:
- The alias to use
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getLettersForNumber
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