Consolidates ConversionService and ConverterRegistry interfaces;
implemented by GenericConversionService.
ConfigurablePropertyResolver#getConversionService now returns this
new type (hence so too does
ConfigurableEnvironment#getConversionService). This allows for
convenient addition / removal of Converter instances from Environment's
existing ConversionService. For example:
ConfigurableApplicationContext ctx = new ...
ConfigurableEnvironment env = ctx.getEnvironment();
env.getConversionService().addConverter(new FooConverter());
Issue: SPR-8389
This reverts commit da914bcfb4 and also
removes the use of Ordered#NOT_ORDERED from EnableTransactionManagement
and ProxyTransactionManagementConfiguration in favor of defaulting to
Ordered#LOWEST_PRIORITY, which is actually the default that results
when no 'order' attribute is specified in XML.
Attempt to access and modify the system environment works on OS X /
Linux but not under Windows. Does not represent any real failure for
production code - the need to modify the system environment is a
testing concern only, and one we can probably live without, considering
the losing battle necessary to make such a hack cross-platform.
Issue: SPR-8245
ClassMetadata implementations can now introspect their member (nested)
classes. This will allow for automatic detection of nested
@Configuration types in SPR-8186.
Issue: SPR-8358,SPR-8186
This new hook in the AbstractEnvironment lifecycle allows for more
explicit and predictable customization of property sources by
subclasses. See Javadoc and existing implementations for detail.
Issue: SPR-8354
AbstractEnvironment and subclasses now register a reserved default
profile named literally 'default' such that with no action on the part
of the user, beans defined against the 'default' profile will be
registered - if no other profiles are explicitly activated.
For example, given the following three files a.xml, b.xml and c.xml:
a.xml
-----
<beans> <!-- no 'profile' attribute -->
<bean id="a" class="com.acme.A"/>
</beans>
b.xml
-----
<beans profile="default">
<bean id="b" class="com.acme.B"/>
</beans>
c.xml
-----
<beans profile="custom">
<bean id="c" class="com.acme.C"/>
</beans>
bootstrapping all of the files in a Spring ApplicationContext as
follows will result in beans 'a' and 'b', but not 'c' being registered:
ApplicationContext ctx = new GenericXmlApplicationContext();
ctx.load("a.xml");
ctx.load("b.xml");
ctx.load("c.xml");
ctx.refresh();
ctx.containsBean("a"); // true
ctx.containsBean("b"); // true
ctx.containsBean("c"); // false
whereas activating the 'custom' profile will result in beans 'a' and
'c', but not 'b' being registered:
ApplicationContext ctx = new GenericXmlApplicationContext();
ctx.load("a.xml");
ctx.load("b.xml");
ctx.load("c.xml");
ctx.getEnvironment().setActiveProfiles("custom");
ctx.refresh();
ctx.containsBean("a"); // true
ctx.containsBean("b"); // false
ctx.containsBean("c"); // true
that is, once the 'custom' profile is activated, beans defined against
the the reserved default profile are no longer registered. Beans not
defined against any profile ('a') are always registered regardless of
which profiles are active, and of course beans registered
against specific active profiles ('c') are registered.
The reserved default profile is, in practice, just another 'default
profile', as might be added through calling env.setDefaultProfiles() or
via the 'spring.profiles.default' property. The only difference is that
the reserved default is added automatically by AbstractEnvironment
implementations. As such, any call to setDefaultProfiles() or value set
for the 'spring.profiles.default' will override the reserved default
profile. If a user wishes to add their own default profile while
keeping the reserved default profile as well, it will need to be
explicitly redeclared, e.g.:
env.addDefaultProfiles("my-default-profile", "default")
The reserved default profile(s) are determined by the value returned
from AbstractEnvironment#getReservedDefaultProfiles(). This protected
method may be overridden by subclasses in order to customize the
set of reserved default profiles.
Issue: SPR-8203
Allows convenient creation of a Properties-based PropertySource from a
Spring Resource object or resource location string such as
"classpath:com/myco/app.properties" or "file:/path/to/file.properties"
Issue: SPR-8328
Users may now call #setRequiredProperties(String...) against the
Environment (via its ConfigurablePropertyResolver interface) in order
to indicate which properties must be present.
Environment#validateRequiredProperties() is invoked by
AbstractApplicationContext during the refresh() lifecycle to perform
the actual check and a MissingRequiredPropertiesException is thrown
if the precondition is not satisfied.
Issue: SPR-8323
Keith Donald
Chris Beams
Sam Brannen
Oliver Gierke