Package liquibase.snapshot.jvm

Class ColumnSnapshotGeneratorInformix

java.lang.Object

liquibase.snapshot.jvm.JdbcSnapshotGenerator

liquibase.snapshot.jvm.ColumnSnapshotGenerator

liquibase.snapshot.jvm.ColumnSnapshotGeneratorInformix

All Implemented Interfaces:

SnapshotGenerator

public class ColumnSnapshotGeneratorInformix
extends ColumnSnapshotGenerator

Informix-specific parts of ColumnSnapshotGenerator to account for various quirks in IBM Informix.

Field Summary

Fields inherited from class liquibase.snapshot.jvm.ColumnSnapshotGenerator

COLUMN_DEF_COL

Fields inherited from interface liquibase.snapshot.SnapshotGenerator

PRIORITY_ADDITIONAL, PRIORITY_DATABASE, PRIORITY_DEFAULT, PRIORITY_NONE

Constructor Summary

Constructors

Constructor	Description
ColumnSnapshotGeneratorInformix()

Method Summary

Modifier and Type	Method	Description
int	getPriority(Class<? extends DatabaseObject> objectType, Database database)	Inquire if this SnapshotGenerator is capable of snapshotting objects of type objectType (e.g.
protected DataType	readDataType(CachedRow columnMetadataResultSet, Column column, Database database)	Processes metadata of a column, e.g. name, type and default value.
Class<? extends SnapshotGenerator>[]	replaces()	Returns classes (and superclasses) that this SnapshotGenerator replaces.

Methods inherited from class liquibase.snapshot.jvm.ColumnSnapshotGenerator

addTo, readColumn, readDefaultValue, setAutoIncrementDetails, snapshotObject

Methods inherited from class liquibase.snapshot.jvm.JdbcSnapshotGenerator

addStatusListener, addsTo, cleanNameFromDatabase, getDatabaseCatalogNames, shouldAddTo, snapshot, updateListeners

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

ColumnSnapshotGeneratorInformix

public ColumnSnapshotGeneratorInformix()

Method Details

getPriority

public int getPriority(Class<? extends DatabaseObject> objectType,
 Database database)

Description copied from interface: SnapshotGenerator

Inquire if this SnapshotGenerator is capable of snapshotting objects of type objectType (e.g. Table, Index, View etc.) in the DBMS database (e.g. Oracle, Postgres, HyperSQL etc.) A return priority of > 0 will be interpreted as capable. The highest priority for an objectType-database combination wins.

Specified by:

getPriority in interface SnapshotGenerator

Overrides:

getPriority in class JdbcSnapshotGenerator

Parameters:

objectType - The object type we are asked to snapshot

database - The DBMS for which the snapshotting should be done

Returns:

An integer of PRIORITY_... constants indicating our capability and willingness to snapshot

replaces

public Class<? extends SnapshotGenerator>[] replaces()

Description copied from interface: SnapshotGenerator

Returns classes (and superclasses) that this SnapshotGenerator replaces. Return null or empty array to not affect the SnapshotGeneratorChain.

Specified by:

replaces in interface SnapshotGenerator

Overrides:

replaces in class JdbcSnapshotGenerator

readDataType

protected DataType readDataType(CachedRow columnMetadataResultSet,
 Column column,
 Database database)
                         throws DatabaseException

Description copied from class: ColumnSnapshotGenerator

Processes metadata of a column, e.g. name, type and default value. We start with the result of the JDBC DatabaseMetaData.getColumns() method. Depending on Database, additional columns might be present.

Overrides:

readDataType in class ColumnSnapshotGenerator

Parameters:

columnMetadataResultSet - the result from the JDBC getColumns() call for the column

column - logical definition of the column (object form)

database - the database from which the column originates

Returns:

a DataType object with detailed information about the type

Throws:

DatabaseException - If an error occurs during processing (mostly caused by Exceptions in JDBC calls)