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package liquibase.sqlgenerator.core; |
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import liquibase.database.Database; |
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import liquibase.database.core.PostgresDatabase; |
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import liquibase.exception.ValidationErrors; |
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import liquibase.sql.Sql; |
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import liquibase.sql.UnparsedSql; |
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import liquibase.sqlgenerator.SqlGenerator; |
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import liquibase.sqlgenerator.SqlGeneratorChain; |
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import liquibase.statement.core.DropSequenceStatement; |
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12 | 68 | public class DropSequenceGenerator extends AbstractSqlGenerator<DropSequenceStatement> { |
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@Override |
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public boolean supports(DropSequenceStatement statement, Database database) { |
16 | 49 | return database.supportsSequences(); |
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} |
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|
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public ValidationErrors validate(DropSequenceStatement dropSequenceStatement, Database database, |
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SqlGeneratorChain sqlGeneratorChain) { |
21 | 9 | ValidationErrors validationErrors = new ValidationErrors(); |
22 | 9 | validationErrors.checkRequiredField("sequenceName", dropSequenceStatement.getSequenceName()); |
23 | 9 | return validationErrors; |
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} |
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|
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public Sql[] generateSql(DropSequenceStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) { |
27 | 0 | String sql = "DROP SEQUENCE " |
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+ database.escapeSequenceName(statement.getSchemaName(), statement.getSequenceName()); |
29 | 0 | if (database instanceof PostgresDatabase) { |
30 | 0 | sql += " CASCADE"; |
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} |
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|
33 | 0 | return new Sql[] { new UnparsedSql(sql) }; |
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} |
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} |