001 /* 002 * JBoss DNA (http://www.jboss.org/dna) 003 * See the COPYRIGHT.txt file distributed with this work for information 004 * regarding copyright ownership. Some portions may be licensed 005 * to Red Hat, Inc. under one or more contributor license agreements. 006 * See the AUTHORS.txt file in the distribution for a full listing of 007 * individual contributors. 008 * 009 * JBoss DNA is free software. Unless otherwise indicated, all code in JBoss DNA 010 * is licensed to you under the terms of the GNU Lesser General Public License as 011 * published by the Free Software Foundation; either version 2.1 of 012 * the License, or (at your option) any later version. 013 * 014 * JBoss DNA is distributed in the hope that it will be useful, 015 * but WITHOUT ANY WARRANTY; without even the implied warranty of 016 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 017 * Lesser General Public License for more details. 018 * 019 * You should have received a copy of the GNU Lesser General Public 020 * License along with this software; if not, write to the Free 021 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 022 * 02110-1301 USA, or see the FSF site: http://www.fsf.org. 023 */ 024 package org.jboss.dna.common.jdbc.model.spi; 025 026 import java.util.Set; 027 import java.util.HashSet; 028 import org.jboss.dna.common.jdbc.model.api.BestRowIdentifier; 029 import org.jboss.dna.common.jdbc.model.api.BestRowIdentifierScopeType; 030 import org.jboss.dna.common.jdbc.model.api.Column; 031 032 /** 033 * Provides table's best row identifies specific metadata. 034 * 035 * @author <a href="mailto:litsenko_sergey@yahoo.com">Sergiy Litsenko</a> 036 */ 037 public class BestRowIdentifierBean extends CoreMetaDataBean implements BestRowIdentifier { 038 private static final long serialVersionUID = -6031029115876541704L; 039 private BestRowIdentifierScopeType scopeType; 040 private Set<Column> columns = new HashSet<Column>(); 041 042 /** 043 * Default constructor 044 */ 045 public BestRowIdentifierBean() { 046 } 047 048 /** 049 * Return the scope of best row identifier 050 * 051 * @return the scope of best row identifier 052 */ 053 public BestRowIdentifierScopeType getScopeType() { 054 return scopeType; 055 } 056 057 /** 058 * Sets the scope of best row identifier 059 * 060 * @param scopeType the scope of best row identifier 061 */ 062 public void setScopeType( BestRowIdentifierScopeType scopeType ) { 063 this.scopeType = scopeType; 064 } 065 066 /** 067 * Retrieves best row identifier columns 068 * 069 * @return best row identifier columns 070 */ 071 public Set<Column> getColumns() { 072 return columns; 073 } 074 075 /** 076 * Adds column to the best row identifier 077 * 078 * @param column the column that part of best row identifier 079 */ 080 public void addColumn( Column column ) { 081 columns.add(column); 082 } 083 084 /** 085 * Deletes column from the best row identifier 086 * 087 * @param column the column that no longer part of best row identifier 088 */ 089 public void deleteColumn( Column column ) { 090 columns.remove(column); 091 } 092 093 /** 094 * Searches column by name 095 * 096 * @param columnName the column name to search 097 * @return column if found, otherwise return null 098 */ 099 public Column findColumnByName( String columnName ) { 100 for (Column c : columns) { 101 if (c.getName().equals(columnName)) { 102 return c; 103 } 104 } 105 // return nothing 106 return null; 107 } 108 }