Class CreateIndexGenerator

All Implemented Interfaces:
PrioritizedService, SqlGenerator<CreateIndexStatement>
Direct Known Subclasses:
CreateIndexGeneratorFirebird, CreateIndexGeneratorPostgres

public class CreateIndexGenerator extends AbstractSqlGenerator<CreateIndexStatement>
  • Constructor Details

    • CreateIndexGenerator

      public CreateIndexGenerator()
  • Method Details

    • validate

      public ValidationErrors validate(CreateIndexStatement createIndexStatement, Database database, SqlGeneratorChain sqlGeneratorChain)
      Description copied from interface: SqlGenerator
      Validate the data contained in the SqlStatement. If there are no errors, return an empty ValidationErrors object, not a null value. Liquibase will inspect the ValidationErrors result before attempting to call generateSql.
    • warn

      public Warnings warn(CreateIndexStatement createIndexStatement, Database database, SqlGeneratorChain sqlGeneratorChain)
      Specified by:
      warn in interface SqlGenerator<CreateIndexStatement>
      warn in class AbstractSqlGenerator<CreateIndexStatement>
    • generateSql

      public Sql[] generateSql(CreateIndexStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain)
      Generate a CREATE INDEX SQL statement. Here, we are walking on thin ice, because the SQL Foundation standard (ISO/IEC 9075-2) does not concern itself with indexes at all and leaves them as an implementation-specific detail at the discretion of each RDBMS vendor. However, there is some common ground to most RDBMS, and we try to make an educated guess on how a CREATE INDEX statement might look like if we have no specific handler for the DBMS.
      statement - A CreateIndexStatement with the desired properties of the SQL to be generated
      database - The DBMS for whose SQL dialect the statement is to be made
      sqlGeneratorChain - The other SQL generators in the same chain (but this method is not interested in them)
      An array of Sql objects containing the generated SQL statement(s).
    • getAffectedIndex

      protected Index getAffectedIndex(CreateIndexStatement statement)