OracleIndexManager.java

/*
 * DBeaver - Universal Database Manager
 * Copyright (C) 2010-2017 Serge Rider (serge@jkiss.org)
 * Copyright (C) 2011-2012 Eugene Fradkin (eugene.fradkin@gmail.com)
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.jkiss.dbeaver.ext.oracle.edit;

import org.jkiss.code.Nullable;
import org.jkiss.dbeaver.ext.oracle.OracleMessages;
import org.jkiss.dbeaver.ext.oracle.model.OracleTableColumn;
import org.jkiss.dbeaver.ext.oracle.model.OracleTableIndex;
import org.jkiss.dbeaver.ext.oracle.model.OracleTableIndexColumn;
import org.jkiss.dbeaver.ext.oracle.model.OracleTablePhysical;
import org.jkiss.dbeaver.model.edit.DBECommandContext;
import org.jkiss.dbeaver.model.impl.DBObjectNameCaseTransformer;
import org.jkiss.dbeaver.model.impl.DBSObjectCache;
import org.jkiss.dbeaver.model.impl.sql.edit.struct.SQLIndexManager;
import org.jkiss.dbeaver.model.runtime.DBRProgressMonitor;
import org.jkiss.dbeaver.model.struct.DBSEntityAttribute;
import org.jkiss.dbeaver.model.struct.DBSObject;
import org.jkiss.dbeaver.model.struct.rdb.DBSIndexType;
import org.jkiss.dbeaver.ui.UITask;
import org.jkiss.dbeaver.ui.editors.object.struct.EditIndexPage;
import org.jkiss.utils.CommonUtils;

import java.util.Collections;

/**
 * Oracle index manager
 */
public class OracleIndexManager extends SQLIndexManager<OracleTableIndex, OracleTablePhysical> {

    @Nullable
    @Override
    public DBSObjectCache<? extends DBSObject, OracleTableIndex> getObjectsCache(OracleTableIndex object)
    {
        return object.getParentObject().getSchema().indexCache;
    }

    @Override
    protected OracleTableIndex createDatabaseObject(
        DBRProgressMonitor monitor, DBECommandContext context, final OracleTablePhysical parent,
        Object from)
    {
        return new UITask<OracleTableIndex>() {
            @Override
            protected OracleTableIndex runTask() {
                EditIndexPage editPage = new EditIndexPage(
                    OracleMessages.edit_oracle_index_manager_dialog_title,
                    parent,
                    Collections.singletonList(DBSIndexType.OTHER));
                if (!editPage.edit()) {
                    return null;
                }

                StringBuilder idxName = new StringBuilder(64);
                idxName.append(CommonUtils.escapeIdentifier(parent.getName())).append("_") //$NON-NLS-1$
                    .append(CommonUtils.escapeIdentifier(editPage.getSelectedAttributes().iterator().next().getName()))
                    .append("_IDX"); //$NON-NLS-1$
                final OracleTableIndex index = new OracleTableIndex(
                    parent.getSchema(),
                    parent,
                    DBObjectNameCaseTransformer.transformName(parent.getDataSource(), idxName.toString()),
                    editPage.isUnique(),
                    editPage.getIndexType());
                int colIndex = 1;
                for (DBSEntityAttribute tableColumn : editPage.getSelectedAttributes()) {
                    index.addColumn(
                        new OracleTableIndexColumn(
                            index,
                            (OracleTableColumn) tableColumn,
                            colIndex++,
                            !Boolean.TRUE.equals(editPage.getAttributeProperty(tableColumn, EditIndexPage.PROP_DESC))));
                }
                return index;
            }
        }.execute();
    }

    @Override
    protected String getDropIndexPattern(OracleTableIndex index)
    {
        return "ALTER TABLE " + PATTERN_ITEM_TABLE + " DROP INDEX " + PATTERN_ITEM_INDEX_SHORT; //$NON-NLS-1$ //$NON-NLS-2$
    }

}