package liquibase.sqlgenerator.core;
import liquibase.database.Database;
import liquibase.database.core.DB2Database;
import liquibase.exception.ValidationErrors;
import liquibase.structure.core.Column;
import liquibase.structure.core.Schema;
import liquibase.structure.core.Table;
import liquibase.sql.Sql;
import liquibase.sql.UnparsedSql;
import liquibase.sqlgenerator.SqlGeneratorChain;
import liquibase.statement.core.AddAutoIncrementStatement;
public class AddAutoIncrementGeneratorDB2 extends AddAutoIncrementGenerator {
@Override
public int getPriority() {
return PRIORITY_DATABASE;
}
@Override
public boolean supports(AddAutoIncrementStatement statement, Database database) {
return database instanceof DB2Database;
}
@Override
public ValidationErrors validate(
AddAutoIncrementStatement statement,
Database database,
SqlGeneratorChain sqlGeneratorChain) {
ValidationErrors validationErrors = new ValidationErrors();
validationErrors.checkRequiredField("columnName", statement.getColumnName());
validationErrors.checkRequiredField("tableName", statement.getTableName());
return validationErrors;
}
@Override
public Sql[] generateSql(
AddAutoIncrementStatement statement,
Database database,
SqlGeneratorChain sqlGeneratorChain) {
return new Sql[]{
new UnparsedSql(
"ALTER TABLE "
+ database.escapeTableName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName())
+ " ALTER COLUMN "
+ database.escapeColumnName(
statement.getCatalogName(),
statement.getSchemaName(),
statement.getTableName(),
statement.getColumnName())
+ " SET "
+ database.getAutoIncrementClause(
statement.getStartWith(), statement.getIncrementBy()),
getAffectedColumn(statement))
};
}
}