added a SybaseAnywhereMaxValueIncrementer since syntax is slightly different than for Sybase ASE (SPR-7623)
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package org.springframework.jdbc.support.incrementer; |
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import javax.sql.DataSource; |
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/** |
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* {@link org.springframework.jdbc.support.incrementer.DataFieldMaxValueIncrementer} that increments |
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* the maximum value of a given Sybase SQL Anywhere table |
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* with the equivalent of an auto-increment column. Note: If you use this class, your table key |
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* column should <i>NOT</i> be defined as an IDENTITY column, as the sequence table does the job. |
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* |
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* <p>This class is intended to be used with Sybase Anywhere. |
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* |
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* <p>The sequence is kept in a table. There should be one sequence table per |
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* table that needs an auto-generated key. |
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* |
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* <p>Example: |
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* |
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* <pre class="code"> create table tab (id int not null primary key, text varchar(100)) |
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* create table tab_sequence (id bigint identity) |
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* insert into tab_sequence values(DEFAULT)</pre> |
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* |
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* If "cacheSize" is set, the intermediate values are served without querying the |
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* database. If the server or your application is stopped or crashes or a transaction |
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* is rolled back, the unused values will never be served. The maximum hole size in |
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* numbering is consequently the value of cacheSize. |
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* |
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* <b>HINT:</b> Since Sybase Anywhere supports the JDBC 3.0 <code>getGeneratedKeys</code> method, |
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* it is recommended to use IDENTITY columns directly in the tables and then using a |
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* {@link org.springframework.jdbc.core.simple.SimpleJdbcInsert} or utilizing |
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* a {@link org.springframework.jdbc.support.KeyHolder} when calling the with the |
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* <code>update(PreparedStatementCreator psc, KeyHolder generatedKeyHolder)</code> |
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* method of the {@link org.springframework.jdbc.core.JdbcTemplate}. |
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* |
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* <p>Thanks to Tarald Saxi Stormark for the suggestion! |
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* |
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* @author Thomas Risberg |
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* @since 3.0.5 |
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*/ |
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public class SybaseAnywhereMaxValueIncrementer extends SybaseMaxValueIncrementer { |
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/** |
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* Default constructor for bean property style usage. |
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* @see #setDataSource |
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* @see #setIncrementerName |
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* @see #setColumnName |
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*/ |
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public SybaseAnywhereMaxValueIncrementer() { |
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} |
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/** |
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* Convenience constructor. |
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* @param dataSource the DataSource to use |
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* @param incrementerName the name of the sequence/table to use |
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* @param columnName the name of the column in the sequence table to use |
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*/ |
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public SybaseAnywhereMaxValueIncrementer(DataSource dataSource, String incrementerName, String columnName) { |
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super(dataSource, incrementerName, columnName); |
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} |
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@Override |
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protected String getIncrementStatement() { |
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return "insert into " + getIncrementerName() + " values(DEFAULT)"; |
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} |
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} |
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