Class ModelComparator
java.lang.Object
edu.internet2.middleware.grouper.ext.org.apache.ddlutils.alteration.ModelComparator
Compares two database models and creates change objects that express how to
adapt the first model so that it becomes the second one. Neither of the models
are changed in the process, however, it is also assumed that the models do not
change in between.
TODO: Add support and tests for the change of the column order
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Constructor Summary
ConstructorDescriptionModelComparator
(PlatformInfo platformInfo, boolean caseSensitive) Creates a new model comparator object. -
Method Summary
Modifier and TypeMethodDescriptionCompares the two models and returns the changes necessary to create the second model from the first one.compareColumns
(Table sourceTable, Column sourceColumn, Table targetTable, Column targetColumn) Compares the two columns and returns the changes necessary to create the second column from the first one.compareTables
(Database sourceModel, Table sourceTable, Database targetModel, Table targetTable) Compares the two tables and returns the changes necessary to create the second table from the first one.
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Constructor Details
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ModelComparator
Creates a new model comparator object.- Parameters:
platformInfo
- The platform infocaseSensitive
- Whether comparison is case sensitive
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Method Details
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compare
Compares the two models and returns the changes necessary to create the second model from the first one.- Parameters:
sourceModel
- The source modeltargetModel
- The target model- Returns:
- The changes
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compareTables
public List compareTables(Database sourceModel, Table sourceTable, Database targetModel, Table targetTable) Compares the two tables and returns the changes necessary to create the second table from the first one.- Parameters:
sourceModel
- The source model which contains the source tablesourceTable
- The source tabletargetModel
- The target model which contains the target tabletargetTable
- The target table- Returns:
- The changes
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compareColumns
public List compareColumns(Table sourceTable, Column sourceColumn, Table targetTable, Column targetColumn) Compares the two columns and returns the changes necessary to create the second column from the first one.- Parameters:
sourceTable
- The source table which contains the source columnsourceColumn
- The source columntargetTable
- The target table which contains the target columntargetColumn
- The target column- Returns:
- The changes
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