liquibase.diff.output.changelog.core.ChangedTableChangeGenerator Maven / Gradle / Ivy
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Liquibase is a tool for managing and executing database changes.
package liquibase.diff.output.changelog.core;
import liquibase.Scope;
import liquibase.change.Change;
import liquibase.change.core.SetTableRemarksChange;
import liquibase.database.Database;
import liquibase.diff.Difference;
import liquibase.diff.ObjectDifferences;
import liquibase.diff.output.DiffOutputControl;
import liquibase.diff.output.changelog.AbstractChangeGenerator;
import liquibase.diff.output.changelog.ChangeGeneratorChain;
import liquibase.diff.output.changelog.ChangedObjectChangeGenerator;
import liquibase.structure.DatabaseObject;
import liquibase.structure.core.Table;
public class ChangedTableChangeGenerator extends AbstractChangeGenerator implements ChangedObjectChangeGenerator {
@Override
public int getPriority(Class objectType, Database database) {
if (Table.class.isAssignableFrom(objectType)) {
return PRIORITY_DEFAULT;
}
return PRIORITY_NONE;
}
@Override
public Class[] runAfterTypes() {
return null;
}
@Override
public Class[] runBeforeTypes() {
return null;
}
@Override
public Change[] fixChanged(DatabaseObject changedObject, ObjectDifferences differences, DiffOutputControl control, Database referenceDatabase, final Database comparisonDatabase, ChangeGeneratorChain chain) {
Table table = (Table) changedObject;
Difference changedRemarks = differences.getDifference("remarks");
if (changedRemarks != null) {
SetTableRemarksChange change = new SetTableRemarksChange();
if (control.getIncludeCatalog()) {
change.setCatalogName(table.getSchema().getCatalogName());
}
if (control.getIncludeSchema()) {
change.setSchemaName(table.getSchema().getName());
}
change.setTableName(table.getName());
change.setRemarks(table.getRemarks());
return new Change[] {
change
};
}
Difference changedTablespace = differences.getDifference("tablespace");
if (changedTablespace != null) {
// TODO: Implement moveTableToDifferentTablespace change type!
Scope.getCurrentScope().getLog(getClass()).warning("A change of the tablespace was detected, however, Liquibase does not currently generate statements to move a table between tablespaces.");
}
return null;
}
}