001 /*
002 $Id: GroovyRowResult.java,v 1.1 2005/02/23 22:09:15 glaforge Exp $
003
004 Copyright 2003 (C) James Strachan and Bob Mcwhirter. All Rights Reserved.
005
006 Redistribution and use of this software and associated documentation
007 ("Software"), with or without modification, are permitted provided
008 that the following conditions are met:
009
010 1. Redistributions of source code must retain copyright
011 statements and notices. Redistributions must also contain a
012 copy of this document.
013
014 2. Redistributions in binary form must reproduce the
015 above copyright notice, this list of conditions and the
016 following disclaimer in the documentation and/or other
017 materials provided with the distribution.
018
019 3. The name "groovy" must not be used to endorse or promote
020 products derived from this Software without prior written
021 permission of The Codehaus. For written permission,
022 please contact info@codehaus.org.
023
024 4. Products derived from this Software may not be called "groovy"
025 nor may "groovy" appear in their names without prior written
026 permission of The Codehaus. "groovy" is a registered
027 trademark of The Codehaus.
028
029 5. Due credit should be given to The Codehaus -
030 http://groovy.codehaus.org/
031
032 THIS SOFTWARE IS PROVIDED BY THE CODEHAUS AND CONTRIBUTORS
033 ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT
034 NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
035 FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
036 THE CODEHAUS OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
037 INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
038 (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
039 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
040 HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
041 STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
042 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
043 OF THE POSSIBILITY OF SUCH DAMAGE.
044
045 */
046 package groovy.sql;
047
048 import groovy.lang.GroovyObjectSupport;
049 import groovy.lang.MissingPropertyException;
050
051 import java.util.Iterator;
052 import java.util.LinkedHashMap;
053
054 /**
055 * Represents an extent of objects.
056 * It's used in the oneRow method to be able to access the result
057 * of a SQL query by the name of the column, or by the column number.
058 *
059 * @Author Jean-Louis Berliet
060 * @version $Revision: 1.1 $
061 */
062 public class GroovyRowResult extends GroovyObjectSupport {
063
064 private LinkedHashMap result;
065
066 public GroovyRowResult(LinkedHashMap result) {
067 this.result = result;
068 }
069
070 /**
071 * Retrieve the value of the property by its name *
072 * @param property is the name of the property to look at
073 * @return the value of the property
074 */
075 public Object getProperty(String property) {
076 try {
077 Object value = result.get(property);
078 if (value==null) {
079 // with some databases/drivers, the columns names are stored uppercase.
080 value = result.get(property.toUpperCase());
081 if (value==null)
082 throw new MissingPropertyException(property, GroovyRowResult.class);
083 }
084 return(value);
085 }
086 catch (Exception e) {
087 throw new MissingPropertyException(property, GroovyRowResult.class, e);
088 }
089 }
090
091 /**
092 * Retrieve the value of the property by its index.
093 * A negative index will count backwards from the last column.
094 * @param index is the number of the column to look at
095 * @return the value of the property
096 */
097 public Object getAt(int index) {
098 try {
099 // a negative index will count backwards from the last column.
100 if (index<0)
101 index += result.size();
102 Iterator it = result.values().iterator();
103 int i = 0;
104 Object obj = null;
105 while ( (obj==null) && (it.hasNext()) ) {
106 if (i==index)
107 obj = it.next();
108 else
109 it.next();
110 i++;
111 }
112 return(obj);
113 }
114 catch (Exception e) {
115 throw new MissingPropertyException(Integer.toString(index), GroovyRowResult.class, e);
116 }
117 }
118
119 public String toString() {
120 return(result.toString() );
121 }
122
123 }