OracleConstraintManager.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.NotNull;
import org.jkiss.code.Nullable;
import org.jkiss.dbeaver.ext.oracle.OracleMessages;
import org.jkiss.dbeaver.ext.oracle.model.*;
import org.jkiss.dbeaver.model.edit.DBECommandContext;
import org.jkiss.dbeaver.model.impl.DBSObjectCache;
import org.jkiss.dbeaver.model.impl.sql.edit.struct.SQLConstraintManager;
import org.jkiss.dbeaver.model.runtime.DBRProgressMonitor;
import org.jkiss.dbeaver.model.struct.DBSEntityAttribute;
import org.jkiss.dbeaver.model.struct.DBSEntityConstraintType;
import org.jkiss.dbeaver.model.struct.DBSObject;
import org.jkiss.dbeaver.ui.UITask;
import org.jkiss.dbeaver.ui.editors.object.struct.EditConstraintPage;

/**
 * Oracle constraint manager
 */
public class OracleConstraintManager extends SQLConstraintManager<OracleTableConstraint, OracleTableBase> {

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

    @Override
    protected OracleTableConstraint createDatabaseObject(
        DBRProgressMonitor monitor, DBECommandContext context, final OracleTableBase parent,
        Object from)
    {
        return new UITask<OracleTableConstraint>() {
            @Override
            protected OracleTableConstraint runTask() {
                EditConstraintPage editPage = new EditConstraintPage(
                    OracleMessages.edit_oracle_constraint_manager_dialog_title,
                    parent,
                    new DBSEntityConstraintType[] {
                        DBSEntityConstraintType.PRIMARY_KEY,
                        DBSEntityConstraintType.UNIQUE_KEY });
                if (!editPage.edit()) {
                    return null;
                }

                final OracleTableConstraint constraint = new OracleTableConstraint(
                    parent,
                    editPage.getConstraintName(),
                    editPage.getConstraintType(),
                    null,
                    OracleObjectStatus.ENABLED);
                int colIndex = 1;
                for (DBSEntityAttribute tableColumn : editPage.getSelectedAttributes()) {
                    constraint.addColumn(
                        new OracleTableConstraintColumn(
                            constraint,
                            (OracleTableColumn) tableColumn,
                            colIndex++));
                }
                return constraint;
            }
        }.execute();
    }

    @Override
    protected String getDropConstraintPattern(OracleTableConstraint constraint)
    {
        String clause;
        if (constraint.getConstraintType() == DBSEntityConstraintType.PRIMARY_KEY) {
            clause = "PRIMARY KEY"; //$NON-NLS-1$
        } else {
            clause = "CONSTRAINT"; //$NON-NLS-1$
        }
        return "ALTER TABLE " + PATTERN_ITEM_TABLE +" DROP " + clause + " " + PATTERN_ITEM_CONSTRAINT; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
    }

    @NotNull
    protected String getAddConstraintTypeClause(OracleTableConstraint constraint) {
        if (constraint.getConstraintType() == DBSEntityConstraintType.UNIQUE_KEY) {
            return "UNIQUE"; //$NON-NLS-1$
        }
        return super.getAddConstraintTypeClause(constraint);
    }

}