org.apache.ddlutils.platform.mysql

Class MySqlModelComparator

java.lang.Object

org.apache.ddlutils.alteration.ModelComparator

org.apache.ddlutils.platform.mysql.MySqlModelComparator

public class MySqlModelComparator
extends ModelComparator

A model comparator customized for MySql.

Constructor Summary

Constructors

Constructor and Description
MySqlModelComparator(PlatformInfo platformInfo, TableDefinitionChangesPredicate tableDefChangePredicate, boolean caseSensitive) Creates a new MySql model comparator object.

Method Summary

Methods

Modifier and Type	Method and Description
protected List	checkForRemovedIndexes(Database sourceModel, Table sourceTable, Database intermediateModel, Table intermediateTable, Database targetModel, Table targetTable) Creates change objects for indexes that are present in the given source table but are no longer in the target table, and applies them to the given intermediate model.
protected List	compareTables(Database sourceModel, Table sourceTable, Database intermediateModel, Table intermediateTable, Database targetModel, Table targetTable) Compares the two tables and returns the changes necessary to create the second table from the first one.

Methods inherited from class org.apache.ddlutils.alteration.ModelComparator

checkForAddedColumns, checkForAddedForeignKeys, checkForAddedIndexes, checkForAddedTables, checkForChangedColumns, checkForChangeOfColumnOrder, checkForPrimaryKeyChanges, checkForRemovedColumns, checkForRemovedForeignKeys, checkForRemovedTables, compare, compareColumns, compareModels, findCorrespondingForeignKey, findCorrespondingIndex, getIntermediateColumnNamesFor, getPlatformInfo, isCaseSensitive, setCanDropPrimaryKeyColumns, setGeneratePrimaryKeyChanges

Methods inherited from class java.lang.Object

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

Constructor Detail

MySqlModelComparator

public MySqlModelComparator(PlatformInfo platformInfo,
                    TableDefinitionChangesPredicate tableDefChangePredicate,
                    boolean caseSensitive)

Creates a new MySql model comparator object.

Parameters:

platformInfo - The platform info

tableDefChangePredicate - The predicate that defines whether tables changes are supported by the platform or not; all changes are supported if this is null

caseSensitive - Whether comparison is case sensitive

Method Detail

checkForRemovedIndexes

protected List checkForRemovedIndexes(Database sourceModel,
                          Table sourceTable,
                          Database intermediateModel,
                          Table intermediateTable,
                          Database targetModel,
                          Table targetTable)

Creates change objects for indexes that are present in the given source table but are no longer in the target table, and applies them to the given intermediate model.

Overrides:

checkForRemovedIndexes in class ModelComparator

Parameters:

sourceModel - The source model

sourceTable - The source table

intermediateModel - The intermediate model to apply the changes to

intermediateTable - The table from the intermediate model corresponding to the source table

targetModel - The target model

targetTable - The target table

Returns:

The changes

compareTables

protected List compareTables(Database sourceModel,
                 Table sourceTable,
                 Database intermediateModel,
                 Table intermediateTable,
                 Database targetModel,
                 Table targetTable)

Compares the two tables and returns the changes necessary to create the second table from the first one.

Overrides:

compareTables in class ModelComparator

Parameters:

sourceModel - The source model

sourceTable - The source table

intermediateModel - The intermediate model to which the changes will be applied incrementally

intermediateTable - The table corresponding to the source table in the intermediate model

targetModel - The target model which contains the target table

targetTable - The target table

Returns:

The changes