Examples with ForeignKeyConstraint liquibase.statement.ForeignKeyConstraint used on opensource projects

Example 1 with ForeignKeyConstraint

use of liquibase.statement.ForeignKeyConstraint in project liquibase by liquibase.

the class CreateTableGeneratorInformix method generateSql.

/**
 * Informix SQL-specific implementation of the CREATE TABLE SQL generator.
 * @param statement The properties of the statement that we will translate into SQL
 * @param database For this implementation always an object of the InformixDatabase type
 * @param sqlGeneratorChain Other generators in the pipeline for this command
 * @return An array of Sql[] statements containing the requested SQL statements for Informix SQL
 */
@Override
public Sql[] generateSql(CreateTableStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
    StringBuilder buffer = new StringBuilder();
    // CREATE TABLE table_name ...
    buffer.append("CREATE TABLE ").append(database.escapeTableName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName())).append(" ");
    buffer.append("(");
    Iterator<String> columnIterator = statement.getColumns().iterator();
    List<String> primaryKeyColumns = new LinkedList<>();
    /*
         * Build the list of columns and constraints in the form
         * (
         *   column1,
         *   ...,
         *   columnN,
         *   constraint1,
         *   ...,
         *   constraintN
         * )
         */
    while (columnIterator.hasNext()) {
        String column = columnIterator.next();
        buffer.append(database.escapeColumnName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName(), column));
        buffer.append(" ").append(statement.getColumnTypes().get(column).toDatabaseDataType(database).toSql());
        AutoIncrementConstraint autoIncrementConstraint = null;
        for (AutoIncrementConstraint currentAutoIncrementConstraint : statement.getAutoIncrementConstraints()) {
            if (column.equals(currentAutoIncrementConstraint.getColumnName())) {
                autoIncrementConstraint = currentAutoIncrementConstraint;
                break;
            }
        }
        boolean isAutoIncrementColumn = autoIncrementConstraint != null;
        boolean isPrimaryKeyColumn = (statement.getPrimaryKeyConstraint() != null) && statement.getPrimaryKeyConstraint().getColumns().contains(column);
        if (isPrimaryKeyColumn) {
            primaryKeyColumns.add(column);
        }
        if (statement.getDefaultValue(column) != null) {
            Object defaultValue = statement.getDefaultValue(column);
            buffer.append(" DEFAULT ");
            buffer.append(statement.getColumnTypes().get(column).objectToSql(defaultValue, database));
        }
        if (isAutoIncrementColumn) {
            // TODO: check if database supports auto increment on non primary key column
            if (database.supportsAutoIncrement()) {
                String autoIncrementClause = database.getAutoIncrementClause(autoIncrementConstraint.getStartWith(), autoIncrementConstraint.getIncrementBy(), autoIncrementConstraint.getGenerationType(), autoIncrementConstraint.getDefaultOnNull());
                if (!autoIncrementClause.isEmpty()) {
                    buffer.append(" ").append(autoIncrementClause);
                }
            } else {
                Scope.getCurrentScope().getLog(getClass()).warning(database.getShortName() + " does not support autoincrement columns as requested for " + (database.escapeTableName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName())));
            }
        }
        if (statement.getNotNullColumns().containsKey(column)) {
            buffer.append(" NOT NULL");
        }
        if (columnIterator.hasNext()) {
            buffer.append(", ");
        }
    }
    buffer.append(",");
    /*
         * We only create a PRIMARY KEY constraint if one is defined and has at least 1 column.
         * General Informix SQL syntax, according to the docs for 11.5
         * https://www.ibm.com/support/knowledgecenter/SSGU8G_11.50.0/com.ibm.sqls.doc/ids_sqs_0100.htm
         * is:
         * ( columns ... --> PRIMARY KEY (column1, ..., columnN) [CONSTRAINT pk_name]
          */
    // 
    PrimaryKeyConstraint pkConstraint = statement.getPrimaryKeyConstraint();
    if ((statement.getPrimaryKeyConstraint() != null) && !statement.getPrimaryKeyConstraint().getColumns().isEmpty()) {
        buffer.append(" PRIMARY KEY (");
        buffer.append(StringUtil.join(primaryKeyColumns, ", "));
        buffer.append(")");
        if (!StringUtil.isEmpty(pkConstraint.getConstraintName())) {
            buffer.append(" CONSTRAINT ");
            buffer.append(database.escapeConstraintName(pkConstraint.getConstraintName()));
        }
        // Setting up table space for PK's index if it exist
        buffer.append(",");
    }
    for (ForeignKeyConstraint fkConstraint : statement.getForeignKeyConstraints()) {
        String referencesString = fkConstraint.getReferences();
        if (!referencesString.contains(".") && (database.getDefaultSchemaName() != null)) {
            referencesString = database.getDefaultSchemaName() + "." + referencesString;
        }
        buffer.append(" FOREIGN KEY (").append(database.escapeColumnName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName(), fkConstraint.getColumn())).append(") REFERENCES ").append(referencesString);
        if (fkConstraint.isDeleteCascade()) {
            buffer.append(" ON DELETE CASCADE");
        }
        buffer.append(" CONSTRAINT ");
        buffer.append(database.escapeConstraintName(fkConstraint.getForeignKeyName()));
        if (fkConstraint.isInitiallyDeferred()) {
            buffer.append(" INITIALLY DEFERRED");
        }
        if (fkConstraint.isDeferrable()) {
            buffer.append(" DEFERRABLE");
        }
        buffer.append(",");
    }
    // TODO: code duplication. Maybe we can merge this whole class into CreateTableGenerator again.
    for (UniqueConstraint uniqueConstraint : statement.getUniqueConstraints()) {
        if ((uniqueConstraint.getConstraintName() != null) && !constraintNameAfterUnique(database)) {
            buffer.append(" CONSTRAINT ");
            buffer.append(database.escapeConstraintName(uniqueConstraint.getConstraintName()));
        }
        buffer.append(" UNIQUE (");
        buffer.append(database.escapeColumnNameList(StringUtil.join(uniqueConstraint.getColumns(), ", ")));
        buffer.append(")");
        if ((uniqueConstraint.getConstraintName() != null) && constraintNameAfterUnique(database)) {
            buffer.append(" CONSTRAINT ");
            buffer.append(database.escapeConstraintName(uniqueConstraint.getConstraintName()));
        }
        buffer.append(",");
    }
    /*
         * Here, the list of columns and constraints in the form
         * ( column1, ..., columnN, constraint1, ..., constraintN,
         * ends. We cannot leave an expression like ", )", so we remove the last comma.
         */
    String sql = buffer.toString().replaceFirst(",\\s*$", "") + ")";
    if ((statement.getTablespace() != null) && database.supportsTablespaces()) {
        sql += " IN " + statement.getTablespace();
    }
    return new Sql[] { new UnparsedSql(sql, new Table().setName(statement.getTableName()).setSchema(new Schema(statement.getCatalogName(), statement.getSchemaName()))) };
}

Example 2 with ForeignKeyConstraint

use of liquibase.statement.ForeignKeyConstraint in project liquibase by liquibase.

the class CreateTableGenerator method generateSql.

@Override
public Sql[] generateSql(CreateTableStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
    List<Sql> additionalSql = new ArrayList<>();
    StringBuilder buffer = new StringBuilder();
    buffer.append("CREATE TABLE ").append(database.escapeTableName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName())).append(" ");
    buffer.append("(");
    boolean isSinglePrimaryKeyColumn = (statement.getPrimaryKeyConstraint() != null) && (statement.getPrimaryKeyConstraint().getColumns().size() == 1);
    boolean isPrimaryKeyAutoIncrement = false;
    Iterator<String> columnIterator = statement.getColumns().iterator();
    BigInteger mysqlTableOptionStartWith = null;
    /* We have reached the point after "CREATE TABLE ... (" and will now iterate through the column list. */
    while (columnIterator.hasNext()) {
        String column = columnIterator.next();
        DatabaseDataType columnType = null;
        if (statement.getColumnTypes().get(column) != null) {
            columnType = statement.getColumnTypes().get(column).toDatabaseDataType(database);
        }
        if (columnType == null) {
            buffer.append(database.escapeColumnName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName(), column, false));
        } else {
            buffer.append(database.escapeColumnName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName(), column, !statement.isComputed(column)));
            buffer.append(" ").append(columnType);
        }
        AutoIncrementConstraint autoIncrementConstraint = null;
        for (AutoIncrementConstraint currentAutoIncrementConstraint : statement.getAutoIncrementConstraints()) {
            if (column.equals(currentAutoIncrementConstraint.getColumnName())) {
                autoIncrementConstraint = currentAutoIncrementConstraint;
                break;
            }
        }
        boolean isAutoIncrementColumn = autoIncrementConstraint != null;
        boolean isPrimaryKeyColumn = (statement.getPrimaryKeyConstraint() != null) && statement.getPrimaryKeyConstraint().getColumns().contains(column);
        isPrimaryKeyAutoIncrement = isPrimaryKeyAutoIncrement || (isPrimaryKeyColumn && isAutoIncrementColumn);
        if ((database instanceof SQLiteDatabase) && isSinglePrimaryKeyColumn && isPrimaryKeyColumn && isAutoIncrementColumn) {
            String pkName = StringUtil.trimToNull(statement.getPrimaryKeyConstraint().getConstraintName());
            if (pkName == null) {
                pkName = database.generatePrimaryKeyName(statement.getTableName());
            }
            if (pkName != null) {
                buffer.append(" CONSTRAINT ");
                buffer.append(database.escapeConstraintName(pkName));
            }
            buffer.append(" PRIMARY KEY");
        }
        // for the serial data type in postgres, there should be no default value
        if (columnType != null && !columnType.isAutoIncrement() && (statement.getDefaultValue(column) != null)) {
            Object defaultValue = statement.getDefaultValue(column);
            if (database instanceof MSSQLDatabase) {
                String constraintName = statement.getDefaultValueConstraintName(column);
                if (constraintName == null) {
                    constraintName = ((MSSQLDatabase) database).generateDefaultConstraintName(statement.getTableName(), column);
                }
                buffer.append(" CONSTRAINT ").append(database.escapeObjectName(constraintName, ForeignKey.class));
            }
            if (((database instanceof OracleDatabase) || (database instanceof PostgresDatabase)) && statement.getDefaultValue(column).toString().startsWith("GENERATED ALWAYS ")) {
                buffer.append(" ");
            } else if (database instanceof Db2zDatabase && statement.getDefaultValue(column).toString().contains("CURRENT TIMESTAMP") || statement.getDefaultValue(column).toString().contains("IDENTITY GENERATED BY DEFAULT")) {
                buffer.append(" ");
            } else {
                buffer.append(" DEFAULT ");
            }
            if (defaultValue instanceof DatabaseFunction) {
                buffer.append(database.generateDatabaseFunctionValue((DatabaseFunction) defaultValue));
            } else if (database instanceof Db2zDatabase) {
                if (statement.getDefaultValue(column).toString().contains("CURRENT TIMESTAMP")) {
                    buffer.append("");
                }
                if (statement.getDefaultValue(column).toString().contains("IDENTITY GENERATED BY DEFAULT")) {
                    buffer.append("GENERATED BY DEFAULT AS IDENTITY");
                }
                if (statement.getDefaultValue(column).toString().contains("CURRENT USER")) {
                    buffer.append("SESSION_USER ");
                }
                if (statement.getDefaultValue(column).toString().contains("CURRENT SQLID")) {
                    buffer.append("CURRENT SQLID ");
                }
            } else {
                buffer.append(statement.getColumnTypes().get(column).objectToSql(defaultValue, database));
            }
        }
        if (isAutoIncrementColumn) {
            if (database instanceof PostgresDatabase && buffer.toString().toLowerCase().endsWith("serial")) {
            // don't add more info
            } else if (database.supportsAutoIncrement()) {
                // TODO: check if database supports auto increment on non primary key column
                String autoIncrementClause = database.getAutoIncrementClause(autoIncrementConstraint.getStartWith(), autoIncrementConstraint.getIncrementBy(), autoIncrementConstraint.getGenerationType(), autoIncrementConstraint.getDefaultOnNull());
                if (!"".equals(autoIncrementClause)) {
                    buffer.append(" ").append(autoIncrementClause);
                }
                if (autoIncrementConstraint.getStartWith() != null) {
                    if (database instanceof PostgresDatabase) {
                        int majorVersion = 9;
                        try {
                            majorVersion = database.getDatabaseMajorVersion();
                        } catch (DatabaseException e) {
                        // ignore
                        }
                        if (majorVersion < 10) {
                            String sequenceName = statement.getTableName() + "_" + column + "_seq";
                            additionalSql.add(new UnparsedSql("alter sequence " + database.escapeSequenceName(statement.getCatalogName(), statement.getSchemaName(), sequenceName) + " start with " + autoIncrementConstraint.getStartWith(), new Sequence().setName(sequenceName).setSchema(statement.getCatalogName(), statement.getSchemaName())));
                        }
                    } else if (database instanceof MySQLDatabase) {
                        mysqlTableOptionStartWith = autoIncrementConstraint.getStartWith();
                    }
                }
            } else {
                Scope.getCurrentScope().getLog(getClass()).warning(database.getShortName() + " does not support autoincrement columns as requested for " + (database.escapeTableName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName())));
            }
        }
        // Do we have a NOT NULL constraint for this column?
        if (statement.getNotNullColumns().get(column) != null) {
            if (!database.supportsNotNullConstraintNames()) {
                buffer.append(" NOT NULL");
            } else {
                /* Determine if the NOT NULL constraint has a name. */
                NotNullConstraint nnConstraintForThisColumn = statement.getNotNullColumns().get(column);
                String nncName = StringUtil.trimToNull(nnConstraintForThisColumn.getConstraintName());
                if (nncName == null) {
                    buffer.append(" NOT NULL");
                } else {
                    buffer.append(" CONSTRAINT ");
                    buffer.append(database.escapeConstraintName(nncName));
                    buffer.append(" NOT NULL");
                }
                if (!nnConstraintForThisColumn.shouldValidateNullable()) {
                    if (database instanceof OracleDatabase) {
                        buffer.append(" ENABLE NOVALIDATE ");
                    }
                }
            }
        // does the DB support constraint names?
        } else {
            if (columnType != null && ((database instanceof SybaseDatabase) || (database instanceof SybaseASADatabase) || (database instanceof MySQLDatabase) || ((database instanceof MSSQLDatabase) && columnType.toString().toLowerCase().contains("timestamp")))) {
                buffer.append(" NULL");
            }
        // Do we need to specify NULL explicitly?
        }
        if ((database instanceof MySQLDatabase) && (statement.getColumnRemarks(column) != null)) {
            buffer.append(" COMMENT '" + database.escapeStringForDatabase(statement.getColumnRemarks(column)) + "'");
        }
        if (columnIterator.hasNext()) {
            buffer.append(", ");
        }
    }
    buffer.append(",");
    if (!((database instanceof SQLiteDatabase) && isSinglePrimaryKeyColumn && isPrimaryKeyAutoIncrement)) {
        if ((statement.getPrimaryKeyConstraint() != null) && !statement.getPrimaryKeyConstraint().getColumns().isEmpty()) {
            if (database.supportsPrimaryKeyNames()) {
                String pkName = StringUtil.trimToNull(statement.getPrimaryKeyConstraint().getConstraintName());
                if (pkName == null) {
                    // TODO ORA-00972: identifier is too long
                    // If tableName lenght is more then 28 symbols
                    // then generated pkName will be incorrect
                    pkName = database.generatePrimaryKeyName(statement.getTableName());
                }
                if (pkName != null) {
                    buffer.append(" CONSTRAINT ");
                    buffer.append(database.escapeConstraintName(pkName));
                }
            }
            buffer.append(" PRIMARY KEY (");
            buffer.append(database.escapeColumnNameList(StringUtil.join(statement.getPrimaryKeyConstraint().getColumns(), ", ")));
            buffer.append(")");
            // Setting up table space for PK's index if it exist
            if (((database instanceof OracleDatabase) || (database instanceof PostgresDatabase)) && (statement.getPrimaryKeyConstraint().getTablespace() != null)) {
                buffer.append(" USING INDEX TABLESPACE ");
                buffer.append(statement.getPrimaryKeyConstraint().getTablespace());
            }
            buffer.append(!statement.getPrimaryKeyConstraint().shouldValidatePrimaryKey() ? " ENABLE NOVALIDATE " : "");
            if (database.supportsInitiallyDeferrableColumns()) {
                if (statement.getPrimaryKeyConstraint().isInitiallyDeferred()) {
                    buffer.append(" INITIALLY DEFERRED");
                }
                if (statement.getPrimaryKeyConstraint().isDeferrable()) {
                    buffer.append(" DEFERRABLE");
                }
            }
            buffer.append(",");
        }
    }
    for (ForeignKeyConstraint fkConstraint : statement.getForeignKeyConstraints()) {
        if (!(database instanceof InformixDatabase)) {
            buffer.append(" CONSTRAINT ");
            buffer.append(database.escapeConstraintName(fkConstraint.getForeignKeyName()));
        }
        String referencesString = fkConstraint.getReferences();
        buffer.append(" FOREIGN KEY (").append(database.escapeColumnName(statement.getCatalogName(), statement.getSchemaName(), statement.getTableName(), fkConstraint.getColumn())).append(") REFERENCES ");
        if (referencesString != null) {
            if (!referencesString.contains(".") && (database.getDefaultSchemaName() != null) && database.getOutputDefaultSchema()) {
                referencesString = database.escapeObjectName(database.getDefaultSchemaName(), Schema.class) + "." + referencesString;
            }
            buffer.append(referencesString);
        } else {
            buffer.append(database.escapeObjectName(fkConstraint.getReferencedTableCatalogName(), fkConstraint.getReferencedTableSchemaName(), fkConstraint.getReferencedTableName(), Table.class)).append("(").append(database.escapeColumnNameList(fkConstraint.getReferencedColumnNames())).append(")");
        }
        if (fkConstraint.isDeleteCascade()) {
            buffer.append(" ON DELETE CASCADE");
        }
        if ((database instanceof InformixDatabase)) {
            buffer.append(" CONSTRAINT ");
            buffer.append(database.escapeConstraintName(fkConstraint.getForeignKeyName()));
        }
        if (fkConstraint.isInitiallyDeferred()) {
            buffer.append(" INITIALLY DEFERRED");
        }
        if (fkConstraint.isDeferrable()) {
            buffer.append(" DEFERRABLE");
        }
        if (database instanceof OracleDatabase) {
            buffer.append(!fkConstraint.shouldValidateForeignKey() ? " ENABLE NOVALIDATE " : "");
        }
        buffer.append(",");
    }
    /*
         * In the current syntax, UNIQUE constraints can only be set per column on table creation.
         * To alleviate this problem we combine the columns of unique constraints that have the same name.
         */
    LinkedHashMap<String, UniqueConstraint> namedUniqueConstraints = new LinkedHashMap<>();
    List<UniqueConstraint> unnamedUniqueConstraints = new LinkedList<>();
    for (UniqueConstraint uniqueConstraint : statement.getUniqueConstraints()) {
        if (uniqueConstraint.getConstraintName() == null) {
            // Only combine uniqueConstraints that have a name.
            unnamedUniqueConstraints.add(uniqueConstraint);
        } else {
            String constraintName = uniqueConstraint.getConstraintName();
            UniqueConstraint existingConstraint = namedUniqueConstraints.get(constraintName);
            if (existingConstraint != null) {
                if (uniqueConstraint.shouldValidateUnique()) {
                    // if validateUnique = true on only one column, make sure it is true
                    existingConstraint.setValidateUnique(true);
                }
                existingConstraint.getColumns().addAll(uniqueConstraint.getColumns());
            } else {
                // if we haven't seen the constraint before put it in the map.
                namedUniqueConstraints.put(constraintName, uniqueConstraint);
            }
        }
    }
    unnamedUniqueConstraints.addAll(namedUniqueConstraints.values());
    for (UniqueConstraint uniqueConstraint : unnamedUniqueConstraints) {
        if (uniqueConstraint.getConstraintName() != null) {
            buffer.append(" CONSTRAINT ");
            buffer.append(database.escapeConstraintName(uniqueConstraint.getConstraintName()));
        }
        buffer.append(" UNIQUE (");
        buffer.append(database.escapeColumnNameList(StringUtil.join(uniqueConstraint.getColumns(), ", ")));
        buffer.append(")");
        if (database instanceof OracleDatabase) {
            buffer.append(!uniqueConstraint.shouldValidateUnique() ? " ENABLE NOVALIDATE " : "");
        }
        buffer.append(",");
    }
    /*
         * Here, the list of columns and constraints in the form
         * ( column1, ..., columnN, constraint1, ..., constraintN,
         * ends. We cannot leave an expression like ", )", so we remove the last comma.
         */
    String sql = buffer.toString().replaceFirst(",\\s*$", "") + ")";
    if ((database instanceof MySQLDatabase) && (mysqlTableOptionStartWith != null)) {
        Scope.getCurrentScope().getLog(getClass()).info("[MySQL] Using last startWith statement (" + mysqlTableOptionStartWith.toString() + ") as table option.");
        sql += " " + ((MySQLDatabase) database).getTableOptionAutoIncrementStartWithClause(mysqlTableOptionStartWith);
    }
    if ((statement.getTablespace() != null) && database.supportsTablespaces()) {
        if ((database instanceof MSSQLDatabase) || (database instanceof SybaseASADatabase)) {
            sql += " ON " + statement.getTablespace();
        } else if ((database instanceof AbstractDb2Database) || (database instanceof InformixDatabase)) {
            sql += " IN " + statement.getTablespace();
        } else {
            sql += " TABLESPACE " + statement.getTablespace();
        }
    }
    if ((database instanceof MySQLDatabase) && (statement.getRemarks() != null)) {
        sql += " COMMENT='" + database.escapeStringForDatabase(statement.getRemarks()) + "' ";
    }
    additionalSql.add(0, new UnparsedSql(sql, getAffectedTable(statement)));
    return additionalSql.toArray(new Sql[additionalSql.size()]);
}

Example 3 with ForeignKeyConstraint

use of liquibase.statement.ForeignKeyConstraint in project liquibase by liquibase.

the class AddColumnGeneratorSQLite method generateSql.

@Override
public Sql[] generateSql(final AddColumnStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
    // Workaround implemented by replacing a table with a new one (duplicate)
    // with a new column added
    final List<AddColumnStatement> columns = new ArrayList<>(statement.getColumns());
    if (columns.size() == 0) {
        columns.add(statement);
    }
    Set<String> newColumnNames = columns.stream().map(AddColumnStatement::getColumnName).collect(Collectors.toSet());
    Sql[] generatedSqls;
    SQLiteDatabase.AlterTableVisitor alterTableVisitor = new SQLiteDatabase.AlterTableVisitor() {

        @Override
        public ColumnConfig[] getColumnsToAdd() {
            ColumnConfig[] columnConfigs = new ColumnConfig[columns.size()];
            int i = 0;
            for (AddColumnStatement column : columns) {
                ColumnConfig newColumn = new ColumnConfig();
                newColumn.setName(column.getColumnName());
                newColumn.setType(column.getColumnType());
                newColumn.setAutoIncrement(column.isAutoIncrement());
                ConstraintsConfig constraintsConfig = new ConstraintsConfig();
                if (column.isPrimaryKey()) {
                    constraintsConfig.setPrimaryKey(true);
                }
                if (column.isNullable()) {
                    constraintsConfig.setNullable(true);
                }
                if (column.isUnique()) {
                    constraintsConfig.setUnique(true);
                }
                newColumn.setConstraints(constraintsConfig);
                for (ColumnConstraint constraint : column.getConstraints()) {
                    if (constraint instanceof ForeignKeyConstraint) {
                        final ForeignKeyConstraint fkConstraint = (ForeignKeyConstraint) constraint;
                        constraintsConfig.setReferencedTableCatalogName(fkConstraint.getReferencedTableCatalogName());
                        constraintsConfig.setReferencedTableSchemaName(fkConstraint.getReferencedTableSchemaName());
                        constraintsConfig.setReferencedTableName(fkConstraint.getReferencedTableName());
                        constraintsConfig.setReferencedColumnNames(fkConstraint.getReferencedColumnNames());
                        constraintsConfig.setReferences(fkConstraint.getReferences());
                        constraintsConfig.setForeignKeyName(fkConstraint.getForeignKeyName());
                        if (fkConstraint.isDeleteCascade()) {
                            constraintsConfig.setDeleteCascade(true);
                        }
                    }
                }
                columnConfigs[i++] = newColumn;
            }
            return columnConfigs;
        }

        @Override
        public boolean copyThisColumn(ColumnConfig column) {
            return !newColumnNames.contains(column.getName());
        }

        @Override
        public boolean createThisColumn(ColumnConfig column) {
            return true;
        }

        @Override
        public boolean createThisIndex(Index index) {
            return true;
        }
    };
    final String catalogName = columns.get(0).getCatalogName();
    final String schemaName = columns.get(0).getSchemaName();
    final String tableName = columns.get(0).getTableName();
    generatedSqls = SQLiteDatabase.getAlterTableSqls(database, alterTableVisitor, catalogName, schemaName, tableName);
    return generatedSqls;
}