| package org.apache.ddlutils.model; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import java.util.ArrayList; |
| |
| import org.apache.commons.lang.builder.EqualsBuilder; |
| |
| /** |
| * Provides compatibility with Torque-style xml with separate <index> and |
| * <unique> tags, but adds no functionality. All indexes are treated the |
| * same by the Table. |
| * |
| * @version $Revision$ |
| */ |
| public class UniqueIndex extends IndexImplBase |
| { |
| /** Unique ID for serialization purposes. */ |
| private static final long serialVersionUID = -4097003126550294993L; |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean isUnique() |
| { |
| return true; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Object clone() throws CloneNotSupportedException |
| { |
| return getClone(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public Index getClone() throws ModelException |
| { |
| UniqueIndex result = new UniqueIndex(); |
| |
| result._name = _name; |
| result._columns = (ArrayList)_columns.clone(); |
| |
| return result; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean equals(Object obj) |
| { |
| if (obj instanceof UniqueIndex) |
| { |
| UniqueIndex other = (UniqueIndex)obj; |
| |
| return new EqualsBuilder().append(_name, other._name) |
| .append(_columns, other._columns) |
| .isEquals(); |
| } |
| else |
| { |
| return false; |
| } |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean equalsIgnoreCase(Index other) |
| { |
| if (other instanceof UniqueIndex) |
| { |
| UniqueIndex otherIndex = (UniqueIndex)other; |
| |
| boolean checkName = (_name != null) && (_name.length() > 0) && |
| (otherIndex._name != null) && (otherIndex._name.length() > 0); |
| |
| if ((!checkName || _name.equalsIgnoreCase(otherIndex._name)) && |
| (getColumnCount() == otherIndex.getColumnCount())) |
| { |
| for (int idx = 0; idx < getColumnCount(); idx++) |
| { |
| if (!getColumn(idx).equalsIgnoreCase(otherIndex.getColumn(idx))) |
| { |
| return false; |
| } |
| } |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public int hashCode() |
| { |
| return _columns.hashCode(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public String toString() |
| { |
| StringBuffer result = new StringBuffer(); |
| |
| result.append("Unique index [name="); |
| result.append(getName()); |
| result.append("; "); |
| result.append(getColumnCount()); |
| result.append(" columns]"); |
| |
| return result.toString(); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public String toVerboseString() |
| { |
| StringBuffer result = new StringBuffer(); |
| |
| result.append("Unique index ["); |
| result.append(getName()); |
| result.append("] columns:"); |
| for (int idx = 0; idx < getColumnCount(); idx++) |
| { |
| result.append(" "); |
| result.append(getColumn(idx).toString()); |
| } |
| |
| return result.toString(); |
| } |
| } |