Examples with Index liquibase.structure.core.Index used on opensource projects

Example 6 with Index

use of liquibase.structure.core.Index in project liquibase by liquibase.

the class ChangedIndexChangeGenerator method fixChanged.

@Override
public Change[] fixChanged(DatabaseObject changedObject, ObjectDifferences differences, DiffOutputControl control, Database referenceDatabase, Database comparisonDatabase, ChangeGeneratorChain chain) {
    //don't try to recreate indexes that differ in just clustered
    Difference clusteredDiff = differences.getDifference("clustered");
    if (clusteredDiff != null) {
        if (clusteredDiff.getReferenceValue() == null || clusteredDiff.getComparedValue() == null) {
            differences.removeDifference("clustered");
        }
    }
    for (String field : getIgnoredFields()) {
        differences.removeDifference(field);
    }
    if (!differences.hasDifferences()) {
        return new Change[0];
    }
    Index index = (Index) changedObject;
    if (index.getTable() != null) {
        if (index.getTable().getPrimaryKey() != null && DatabaseObjectComparatorFactory.getInstance().isSameObject(index.getTable().getPrimaryKey().getBackingIndex(), changedObject, differences.getSchemaComparisons(), comparisonDatabase)) {
            return ChangeGeneratorFactory.getInstance().fixChanged(index.getTable().getPrimaryKey(), differences, control, referenceDatabase, comparisonDatabase);
        }
        List<UniqueConstraint> uniqueConstraints = index.getTable().getUniqueConstraints();
        if (uniqueConstraints != null) {
            for (UniqueConstraint constraint : uniqueConstraints) {
                if (constraint.getBackingIndex() != null && DatabaseObjectComparatorFactory.getInstance().isSameObject(constraint.getBackingIndex(), changedObject, differences.getSchemaComparisons(), comparisonDatabase)) {
                    return ChangeGeneratorFactory.getInstance().fixChanged(constraint, differences, control, referenceDatabase, comparisonDatabase);
                }
            }
        }
    }
    DropIndexChange dropIndexChange = createDropIndexChange();
    dropIndexChange.setTableName(index.getTable().getName());
    dropIndexChange.setIndexName(index.getName());
    CreateIndexChange addIndexChange = createCreateIndexChange();
    addIndexChange.setTableName(index.getTable().getName());
    List<AddColumnConfig> columns = new ArrayList<AddColumnConfig>();
    for (Column col : index.getColumns()) {
        columns.add(new AddColumnConfig(col));
    }
    addIndexChange.setColumns(columns);
    addIndexChange.setIndexName(index.getName());
    addIndexChange.setUnique(index.isUnique());
    if (control.getIncludeCatalog()) {
        dropIndexChange.setCatalogName(index.getSchema().getCatalogName());
        addIndexChange.setCatalogName(index.getSchema().getCatalogName());
    }
    if (control.getIncludeSchema()) {
        dropIndexChange.setSchemaName(index.getSchema().getName());
        addIndexChange.setSchemaName(index.getSchema().getName());
    }
    Difference columnsDifference = differences.getDifference("columns");
    if (columnsDifference != null) {
        List<Column> referenceColumns = (List<Column>) columnsDifference.getReferenceValue();
        List<Column> comparedColumns = (List<Column>) columnsDifference.getComparedValue();
        StringUtils.StringUtilsFormatter<Column> formatter = new StringUtils.StringUtilsFormatter<Column>() {

            @Override
            public String toString(Column obj) {
                return obj.toString(false);
            }
        };
        control.setAlreadyHandledChanged(new Index().setTable(index.getTable()).setColumns(referenceColumns));
        if (!StringUtils.join(referenceColumns, ",", formatter).equalsIgnoreCase(StringUtils.join(comparedColumns, ",", formatter))) {
            control.setAlreadyHandledChanged(new Index().setTable(index.getTable()).setColumns(comparedColumns));
        }
        if (index.isUnique() != null && index.isUnique()) {
            control.setAlreadyHandledChanged(new UniqueConstraint().setTable(index.getTable()).setColumns(referenceColumns));
            if (!StringUtils.join(referenceColumns, ",", formatter).equalsIgnoreCase(StringUtils.join(comparedColumns, ",", formatter))) {
                control.setAlreadyHandledChanged(new UniqueConstraint().setTable(index.getTable()).setColumns(comparedColumns));
            }
        }
    }
    return new Change[] { dropIndexChange, addIndexChange };
}

Example 7 with Index

use of liquibase.structure.core.Index in project liquibase by liquibase.

the class IndexComparator method isSameObject.

@Override
public boolean isSameObject(DatabaseObject databaseObject1, DatabaseObject databaseObject2, Database accordingTo, DatabaseObjectComparatorChain chain) {
    if (!(databaseObject1 instanceof Index && databaseObject2 instanceof Index)) {
        return false;
    }
    Index thisIndex = (Index) databaseObject1;
    Index otherIndex = (Index) databaseObject2;
    int thisIndexSize = thisIndex.getColumns().size();
    int otherIndexSize = otherIndex.getColumns().size();
    if (thisIndex.getTable() != null && otherIndex.getTable() != null) {
        if (!DatabaseObjectComparatorFactory.getInstance().isSameObject(thisIndex.getTable(), otherIndex.getTable(), chain.getSchemaComparisons(), accordingTo)) {
            return false;
        }
        if (databaseObject1.getSchema() != null && databaseObject2.getSchema() != null && !DatabaseObjectComparatorFactory.getInstance().isSameObject(databaseObject1.getSchema(), databaseObject2.getSchema(), chain.getSchemaComparisons(), accordingTo)) {
            return false;
        }
        if (databaseObject1.getName() != null && databaseObject2.getName() != null && DefaultDatabaseObjectComparator.nameMatches(databaseObject1, databaseObject2, accordingTo)) {
            return true;
        } else {
            if (thisIndexSize == 0 || otherIndexSize == 0) {
                return DefaultDatabaseObjectComparator.nameMatches(databaseObject1, databaseObject2, accordingTo);
            }
            if (thisIndexSize > 0 && otherIndexSize > 0 && thisIndexSize != otherIndexSize) {
                return false;
            }
            for (int i = 0; i < otherIndexSize; i++) {
                if (!DatabaseObjectComparatorFactory.getInstance().isSameObject(thisIndex.getColumns().get(i), otherIndex.getColumns().get(i), chain.getSchemaComparisons(), accordingTo)) {
                    return false;
                }
            }
            return true;
        }
    } else {
        if (thisIndexSize > 0 && otherIndexSize > 0 && thisIndexSize != otherIndexSize) {
            return false;
        }
        if (!DefaultDatabaseObjectComparator.nameMatches(databaseObject1, databaseObject2, accordingTo)) {
            return false;
        }
        if (databaseObject1.getSchema() != null && databaseObject2.getSchema() != null) {
            return DatabaseObjectComparatorFactory.getInstance().isSameObject(databaseObject1.getSchema(), databaseObject2.getSchema(), chain.getSchemaComparisons(), accordingTo);
        } else {
            return true;
        }
    }
}

Example 8 with Index

use of liquibase.structure.core.Index in project liquibase by liquibase.

the class MissingIndexChangeGenerator method fixMissing.

@Override
public Change[] fixMissing(DatabaseObject missingObject, DiffOutputControl control, Database referenceDatabase, Database comparisonDatabase, ChangeGeneratorChain chain) {
    Index index = (Index) missingObject;
    if (comparisonDatabase instanceof MSSQLDatabase) {
        PrimaryKey primaryKey = index.getTable().getPrimaryKey();
        if (primaryKey != null && DatabaseObjectComparatorFactory.getInstance().isSameObject(missingObject, primaryKey.getBackingIndex(), control.getSchemaComparisons(), referenceDatabase)) {
            //will be handled by the PK
            return new Change[0];
        }
    }
    CreateIndexChange change = createCreateIndexChange();
    change.setTableName(index.getTable().getName());
    if (control.getIncludeTablespace()) {
        change.setTablespace(index.getTablespace());
    }
    if (control.getIncludeCatalog()) {
        change.setCatalogName(index.getTable().getSchema().getCatalogName());
    }
    if (control.getIncludeSchema()) {
        change.setSchemaName(index.getTable().getSchema().getName());
    }
    change.setIndexName(index.getName());
    change.setUnique(index.isUnique() != null && index.isUnique() ? Boolean.TRUE : null);
    change.setAssociatedWith(index.getAssociatedWithAsString());
    change.setClustered(index.getClustered() != null && index.getClustered() ? Boolean.TRUE : null);
    for (Column column : index.getColumns()) {
        change.addColumn(new AddColumnConfig(column));
    }
    return new Change[] { change };
}

Example 9 with Index

use of liquibase.structure.core.Index in project liquibase by liquibase.

the class DropPrimaryKeyChange method generateStatementsForSQLiteDatabase.

private SqlStatement[] generateStatementsForSQLiteDatabase(Database database) {
    // SQLite does not support this ALTER TABLE operation until now.
    // For more information see: http://www.sqlite.org/omitted.html.
    // This is a small work around...
    // Note: The attribute "constraintName" is used to pass the column 
    // name instead of the constraint name.
    List<SqlStatement> statements = new ArrayList<SqlStatement>();
    // define alter table logic
    AlterTableVisitor rename_alter_visitor = new AlterTableVisitor() {

        @Override
        public ColumnConfig[] getColumnsToAdd() {
            return new ColumnConfig[0];
        }

        @Override
        public boolean copyThisColumn(ColumnConfig column) {
            return true;
        }

        @Override
        public boolean createThisColumn(ColumnConfig column) {
            if (column.getName().equals(getConstraintName())) {
                column.getConstraints().setPrimaryKey(false);
            }
            return true;
        }

        @Override
        public boolean createThisIndex(Index index) {
            return true;
        }
    };
    try {
        // alter table
        statements.addAll(SQLiteDatabase.getAlterTableStatements(rename_alter_visitor, database, getCatalogName(), getSchemaName(), getTableName()));
    } catch (Exception e) {
        e.printStackTrace();
    }
    return statements.toArray(new SqlStatement[statements.size()]);
}

Example 10 with Index

use of liquibase.structure.core.Index in project liquibase by liquibase.

the class MergeColumnChange method generateStatements.

@Override
public SqlStatement[] generateStatements(Database database) {
    List<SqlStatement> statements = new ArrayList<SqlStatement>();
    AddColumnChange addNewColumnChange = new AddColumnChange();
    addNewColumnChange.setSchemaName(schemaName);
    addNewColumnChange.setTableName(getTableName());
    AddColumnConfig columnConfig = new AddColumnConfig();
    columnConfig.setName(getFinalColumnName());
    columnConfig.setType(getFinalColumnType());
    addNewColumnChange.addColumn(columnConfig);
    statements.addAll(Arrays.asList(addNewColumnChange.generateStatements(database)));
    String updateStatement = "UPDATE " + database.escapeTableName(getCatalogName(), getSchemaName(), getTableName()) + " SET " + database.escapeObjectName(getFinalColumnName(), Column.class) + " = " + database.getConcatSql(database.escapeObjectName(getColumn1Name(), Column.class), "'" + getJoinString() + "'", database.escapeObjectName(getColumn2Name(), Column.class));
    statements.add(new RawSqlStatement(updateStatement));
    if (database instanceof SQLiteDatabase) {
        // SQLite does not support this ALTER TABLE operation until now.
        // For more information see: http://www.sqlite.org/omitted.html
        // This is a small work around...
        // define alter table logic
        AlterTableVisitor rename_alter_visitor = new AlterTableVisitor() {

            @Override
            public ColumnConfig[] getColumnsToAdd() {
                ColumnConfig[] new_columns = new ColumnConfig[1];
                ColumnConfig new_column = new ColumnConfig();
                new_column.setName(getFinalColumnName());
                new_column.setType(getFinalColumnType());
                new_columns[0] = new_column;
                return new_columns;
            }

            @Override
            public boolean copyThisColumn(ColumnConfig column) {
                return !(column.getName().equals(getColumn1Name()) || column.getName().equals(getColumn2Name()));
            }

            @Override
            public boolean createThisColumn(ColumnConfig column) {
                return !(column.getName().equals(getColumn1Name()) || column.getName().equals(getColumn2Name()));
            }

            @Override
            public boolean createThisIndex(Index index) {
                return !(index.getColumnNames().contains(getColumn1Name()) || index.getColumnNames().contains(getColumn2Name()));
            }
        };
        try {
            // alter table
            statements.addAll(SQLiteDatabase.getAlterTableStatements(rename_alter_visitor, database, getCatalogName(), getSchemaName(), getTableName()));
        } catch (Exception e) {
            e.printStackTrace();
        }
    } else {
        // ...if it is not a SQLite database 
        DropColumnChange dropColumn1Change = new DropColumnChange();
        dropColumn1Change.setSchemaName(schemaName);
        dropColumn1Change.setTableName(getTableName());
        dropColumn1Change.setColumnName(getColumn1Name());
        statements.addAll(Arrays.asList(dropColumn1Change.generateStatements(database)));
        DropColumnChange dropColumn2Change = new DropColumnChange();
        dropColumn2Change.setSchemaName(schemaName);
        dropColumn2Change.setTableName(getTableName());
        dropColumn2Change.setColumnName(getColumn2Name());
        statements.addAll(Arrays.asList(dropColumn2Change.generateStatements(database)));
    }
    return statements.toArray(new SqlStatement[statements.size()]);
}