liquibase.datatype.core.SmallIntType Maven / Gradle / Ivy

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Liquibase is a tool for managing and executing database changes.
There is a newer version: 4.29.1
package liquibase.datatype.core;

import liquibase.GlobalConfiguration;
import liquibase.change.core.LoadDataChange;
import liquibase.database.Database;
import liquibase.database.core.*;
import liquibase.datatype.DataTypeInfo;
import liquibase.datatype.DatabaseDataType;
import liquibase.datatype.LiquibaseDataType;
import liquibase.statement.DatabaseFunction;

import java.util.Locale;

@DataTypeInfo(name = "smallint", aliases = {"java.sql.Types.SMALLINT", "int2", "smallserial"}, minParameters = 0, maxParameters = 1, priority = LiquibaseDataType.PRIORITY_DEFAULT)
public class SmallIntType extends LiquibaseDataType {

    private boolean autoIncrement;

    @Override
    public boolean isAutoIncrement() {
        return autoIncrement;
    }

    public void setAutoIncrement(boolean autoIncrement) {
        this.autoIncrement = autoIncrement;
    }

    @Override
    public DatabaseDataType toDatabaseDataType(Database database) {
        if (database instanceof MSSQLDatabase) {
            return new DatabaseDataType(database.escapeDataTypeName("smallint")); //always smallint regardless of parameters passed
        }
        if (database instanceof MySQLDatabase) {
            DatabaseDataType type = new DatabaseDataType("SMALLINT");
            type.addAdditionalInformation(getAdditionalInformation());
            return type;
        }
        if ((database instanceof AbstractDb2Database) ||
                (database instanceof DerbyDatabase) ||
                (database instanceof FirebirdDatabase) ||
                (database instanceof InformixDatabase)) {
            return new DatabaseDataType("SMALLINT"); //always smallint regardless of parameters passed
        }

        if (database instanceof OracleDatabase) {
            return new DatabaseDataType("NUMBER", 5);
        }


        if (database instanceof PostgresDatabase) {
            if (isAutoIncrement()) {
                if (((PostgresDatabase) database).useSerialDatatypes()) {
                    return new DatabaseDataType("SMALLSERIAL");
                }
            } else {
                if (GlobalConfiguration.CONVERT_DATA_TYPES.getCurrentValue() || this.getRawDefinition() == null) {
                    return new DatabaseDataType("SMALLINT");
                } else {
                    return new DatabaseDataType(this.getRawDefinition());
                }
            }
            return new DatabaseDataType("SMALLINT"); //always smallint regardless of parameters passed
        }
        if ((database instanceof SybaseDatabase) || (database instanceof H2Database)) {
            return new DatabaseDataType("SMALLINT");
        }
        return super.toDatabaseDataType(database);
    }

    @Override
    public String objectToSql(Object value, Database database) {
        if ((value == null) || "null".equals(value.toString().toLowerCase(Locale.US))) {
            return null;
        }
        if (value instanceof DatabaseFunction) {
            return value.toString();
        }

        if (value instanceof Boolean)
            return Boolean.TRUE.equals(value) ? "1" : "0";
        else {
            return formatNumber(value.toString());
        }
    }

    @Override
    public LoadDataChange.LOAD_DATA_TYPE getLoadTypeName() {
        return LoadDataChange.LOAD_DATA_TYPE.NUMERIC;
    }

    @Override
    public void finishInitialization(String originalDefinition) {
        super.finishInitialization(originalDefinition);

        if (originalDefinition.toLowerCase(Locale.US).contains("serial")) {
            autoIncrement = true;
        }
    }
}