RE: [Springframework-developer] Attributes - any alternative for commons-attributes ?

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Well.. I managed to get jakarta-commons-attributes to work by using the CVS
version.

Would it be possible to upgrade spring to use this by default ?

The version number of the jar that the cvs version builds is
commons-attributes-compiler-2.0alpha.jar

On a side note, I wish to use a
org.springframework.transaction.interceptor.NameMatchTransactionAttributeSou
rce as the default attribute source, allowing me to specify something like :

<bean id="matchMethodNamePattern"
class="org.springframework.transaction.interceptor.NameMatchTransactionAttri
buteSource">
    <property name="properties">
        <props>
            <!-- read only methods -->
            <prop key="list*">PROPAGATION_REQUIRED,readOnly</prop>
            <prop key="find*">PROPAGATION_REQUIRED,readOnly</prop>
            <prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
            <prop key="load*">PROPAGATION_REQUIRED,readOnly</prop>
            <prop key="read*">PROPAGATION_REQUIRED,readOnly</prop>
            <!-- the default is transactional (least specific, match
everything) -->
            <prop key="*">PROPAGATION_REQUIRED</prop>
        </props>
    </property>
</bean>

Then, I wish to use a commons attributes attribute source to override these
defaults.

How would I achieve this.

I saw the jpetstore attribuites sample, using :

<bean id="transactionAttributeSource"

class="org.springframework.transaction.interceptor.AttributesTransactionAttr
ibuteSource"
    autowire="constructor">
</bean>
<bean id="attributes"
class="org.springframework.metadata.commons.CommonsAttributes"/>

but I can't work out how to 'nest' attribute sources as seems to be possible
as described at 

http://www.springframework.org/docs/api/org/springframework/metadata/Attribu
tes.html
"...as it allows for hierarchical attribute sources..."

Thanks,

Cameron.

  _____  

From: spr...@li...
[mailto:spr...@li...] On Behalf Of
Cameron Braid
Sent: Thursday, 12 February 2004 10:52 PM
To: spr...@li...
Subject: [Springframework-developer] Attributes - any alternative for
commons-attributes ?

I am trying to use commons-attributes to create transactional attributes for
some beans.

I can't seem to get the commons-attributes compiler to work .. it doesn't
like my source code, see stack trace below.

Before I dive into the source code for commons-attributes, I would like to
ask if there are plans to support another metadata system.

If there aren't plans, can you recommend another metadata system that I
could investigate implementing myself.

I have had a look at 
  * attrib4j - it modifies the classes, which makes using eclipse a pain.
  * nanning attributes may work, though they don't offer instance based
attributes ( only strings as far as I can see)
  * I am currently trying qdox attributes, but the jar they provide doesn't
have the right classes.. I am trying a source build.

stacktrace :
compile.attributes:
[attribute-compiler] java.lang.StringIndexOutOfBoundsException: String index
out of range: 0
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.start(AttributeComp
iler.java:455)
[attribute-compiler]    at
xjavadoc.ant.XJavadocTask.execute(XJavadocTask.java:96)
[attribute-compiler]    at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:166)
[attribute-compiler]    at org.apache.tools.ant.Task.perform(Task.java:319)
[attribute-compiler]    at
org.apache.tools.ant.Target.execute(Target.java:309)
[attribute-compiler]    at
org.apache.tools.ant.Target.performTasks(Target.java:336)
[attribute-compiler]    at
org.apache.tools.ant.Project.executeTarget(Project.java:1306)
[attribute-compiler]    at
org.apache.tools.ant.Project.executeTargets(Project.java:1250)
[attribute-compiler]    at org.apache.tools.ant.Main.runBuild(Main.java:610)
[attribute-compiler]    at org.apache.tools.ant.Main.start(Main.java:196)
[attribute-compiler]    at org.apache.tools.ant.Main.main(Main.java:235)
[attribute-compiler] Caused by: java.lang.StringIndexOutOfBoundsException:
String index out of range: 0
[attribute-compiler]    at java.lang.String.charAt(String.java:444)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.isAttribute(Attribu
teCompiler.java:439)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.tagHasAttributes(At
tributeCompiler.java:464)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.elementHasAttribute
s(AttributeCompiler.java:206)

[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.hasAttributes(Attri
buteCompiler.java:420)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.generateClass(Attri
buteCompiler.java:257)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.start(AttributeComp
iler.java:452)
[attribute-compiler]    ... 10 more
[attribute-compiler] --- Nested Exception ---
[attribute-compiler] java.lang.StringIndexOutOfBoundsException: String index
out of range: 0
[attribute-compiler]    at java.lang.String.charAt(String.java:444)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.isAttribute(Attribu
teCompiler.java:439)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.tagHasAttributes(At
tributeCompiler.java:464)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.elementHasAttribute
s(AttributeCompiler.java:206)

[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.hasAttributes(Attri
buteCompiler.java:420)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.generateClass(Attri
buteCompiler.java:257)
[attribute-compiler]    at
org.apache.commons.attributes.compiler.AttributeCompiler.start(AttributeComp
iler.java:452)
[attribute-compiler]    at
xjavadoc.ant.XJavadocTask.execute(XJavadocTask.java:96)
[attribute-compiler]    at
org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:166)
[attribute-compiler]    at org.apache.tools.ant.Task.perform(Task.java:319)
[attribute-compiler]    at
org.apache.tools.ant.Target.execute(Target.java:309)
[attribute-compiler]    at
org.apache.tools.ant.Target.performTasks(Target.java:336)
[attribute-compiler]    at
org.apache.tools.ant.Project.executeTarget(Project.java:1306)
[attribute-compiler]    at
org.apache.tools.ant.Project.executeTargets(Project.java:1250)
[attribute-compiler]    at org.apache.tools.ant.Main.runBuild(Main.java:610)
[attribute-compiler]    at org.apache.tools.ant.Main.start(Main.java:196)
[attribute-compiler]    at org.apache.tools.ant.Main.main(Main.java:235)
[attribute-compiler] WARNING: Some classes refer to other classes that were
not found among the sources or on the classpath.
[attribute-compiler]          (Perhaps the referred class doesn't exist?
Hasn't been generated yet?)
[attribute-compiler]          The referring classes do not import any fully
qualified classes matching these classes.
[attribute-compiler]          Since at least one package is imported, it is
impossible for xjavadoc to figure out
[attribute-compiler]          what package the referred classes belong to.
The classes are: