JarCastingConstretto Spring Module
Support for using Constretto in Spring contexts. It includes namespace support for XML-based Spring contexts as well as a PropertyPlaceHolder implementation (allowing property placeholders refering to to Constretto configuration keys to be used in bean definitions).
** Note: This module used to be part of constretto-core but will starting with version 3 be maintained and versioned independently of constretto-core **
Compatibility
The Spring module is tested with Spring 3.2.X and Java 7. Most features will probably work fine with Spring 4.X and/or Java 8, but 100% compatibility can not be guaranteed.
Adding dependency
Maven
<dependency>
<groupId>org.constretto</groupId>
<artifactId>constretto-spring</artifactId>
<version>3.0.0-BETA1</version>
</dependency>
Spring XML Namespace support
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:constretto="http://constretto.org/schema/constretto"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://constretto.org/schema/constretto http://constretto.org/schema/constretto/constretto-1.2.xsd">
<constretto:configuration annotation-config="true" property-placeholder="true">
<constretto:stores>
<constretto:properties-store>
<constretto:resource location="classpath:properties/test1.properties"/>
</constretto:properties-store>
</constretto:stores>
</constretto:configuration>
<bean class="org.constretto.beans.ExampleBean">
<property name="field" value="${constretto.key}" />
</bean>
</beans>
Spring JavaConfig support
There are two ways to enable Constretto support for Java-based Spring contexts. The first method is to add the @EnableConstretto annotation and a static method returning a ConstrettoConfiguration configuration
using @EnableConstretto
@EnableConstretto
@org.springframework.context.annotation.Configuration
public class TestContext {
@Configuration(required = true) // Will be injected by Constretto's Configuration processor
private String key1;
@Value("${key1}") // Will be injected by Constretto's Property placeholder processor
private String key1AsValue;
// a static method returning a ConstrettoConfiguration must be defined
public static org.constretto.ConstrettoConfiguration constrettoConfiguration() {
return new ConstrettoBuilder()
.createPropertiesStore()
.addResource(Resource.create("classpath:properties/test1.properties"))
.done()
.getConfiguration();
}
}
Extending BasicConstrettoConfiguration
The second method is to extend the BasicConstrettoConfiguration class and override the constrettoConfiguration() method
@org.springframework.context.annotation.Configuration
public class TestContext extends BasicConstrettoConfiguration {
@Configuration(required = true) // Will be injected by Constretto's Configuration processor
private String key1;
@Value("${key1}") // Will be injected by Constretto's Property placeholder processor
private String key1AsValue;
@Override
public org.constretto.ConstrettoConfiguration constrettoConfiguration() {
return new ConstrettoBuilder()
.createPropertiesStore()
.addResource(Resource.create("classpath:properties/test1.properties"))
.done()
.getConfiguration();
}
}
