Collection Injection
/* Pro Spring By Rob Harrop Jan Machacek ISBN: 1-59059-461-4 Publisher: Apress */ /////////////////////////////////////////////////////////////////////////////////////// //File: beans.xml <!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd" > <beans> <!-- oracle bean used for a few examples --> <bean id= "oracle" name= "wiseworm" class = "BookwormOracle" /> <!-- collection injection samples --> <bean id= "injectCollection" class = "CollectionInjection" > <property name= "map" > <map> <entry key= "someValue" > <value>Hello World!</value> </entry> <entry key= "someBean" > <ref local= "oracle" /> </entry> </map> </property> <property name= "props" > <props> <prop key= "firstName" > Rob </prop> <prop key= "secondName" > Harrop </prop> </props> </property> <property name= "set" > <set> <value>Hello World!</value> <ref local= "oracle" /> </set> </property> <property name= "list" > <list> <value>Hello World!</value> <ref local= "oracle" /> </list> </property> </bean> </beans> /////////////////////////////////////////////////////////////////////////////////////// public interface Oracle { public String defineMeaningOfLife () ; } /////////////////////////////////////////////////////////////////////////////////////// public class Encyclopedia { } /////////////////////////////////////////////////////////////////////////////////////// public class BookwormOracle implements Oracle { private Encyclopedia enc; public void setEncyclopedia ( Encyclopedia enc ) { this .enc = enc; } public String defineMeaningOfLife () { return "Encyclopedia's are a waste of money - use the Internet" ; } } /////////////////////////////////////////////////////////////////////////////////////// import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Properties; import java.util.Set; import org.springframework.beans.factory.BeanFactory; import org.springframework.beans.factory.xml.XmlBeanFactory; import org.springframework.core.io.FileSystemResource; public class CollectionInjection { private Map map; private Properties props; private Set set; private List list; public static void main ( String [] args ) { BeanFactory factory = new XmlBeanFactory ( new FileSystemResource ( "build/beans.xml" )) ; CollectionInjection instance = ( CollectionInjection ) factory.getBean ( "injectCollection" ) ; instance.displayInfo () ; } public void setList ( List list ) { this .list = list; } public void setSet ( Set set ) { this .set = set; } public void setMap ( Map map ) { this .map = map; } public void setProps ( Properties props ) { this .props = props; } public void displayInfo () { // display the Map Iterator i = map.keySet () .iterator () ; System.out.println ( "Map contents:\n" ) ; while ( i.hasNext ()) { Object key = i.next () ; System.out.println ( "Key: " + key + " - Value: " + map.get ( key )) ; } // display the properties i = props.keySet () .iterator () ; System.out.println ( "\nProperties contents:\n" ) ; while ( i.hasNext ()) { String key = i.next () .toString () ; System.out.println ( "Key: " + key + " - Value: " + props.getProperty ( key )) ; } // display the set i = set.iterator () ; System.out.println ( "\nSet contents:\n" ) ; while ( i.hasNext ()) { System.out.println ( "Value: " + i.next ()) ; } // display the list i = list.iterator () ; System.out.println ( "\nList contents:\n" ) ; while ( i.hasNext ()) { System.out.println ( "Value: " + i.next ()) ; } } }
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CollectionInjection.zip( 1,199 k)