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https://issues.apache.org/jira/browse/JDO-749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15005255#comment-15005255
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Andy Jefferson edited comment on JDO-749 at 11/14/15 10:37 AM:
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Actually, after doing a few tests with Java7 and Java8, we cannot simply add
Java8 related classes to jdo-api compile to 1.8 and run with 1.7, since some
operations have a check on major.minor version and it finds the jdo-api with
major.minor as 52.0.
Ways around this are
1. Have 2 jdo-api jars. One for java7 and one for java8 (with the java.time
support), and the user pulls in the one they require.
2. Just move to java8 minimum
Note : this applies solely to the use of Java8 types in the JDOQLTypedQuery.
Java8 types can still be used with JDO 3.2 without any change to "jdo-api" for
all other features (persistence, standard JDOQL).
was (Author: andy):
Actually, after doing a few tests with Java7 and Java8, we cannot simply add
Java8 related classes to jdo-api compile to 1.8 and run with 1.7, since some
operations have a check on major.minor version and it finds the jdo-api with
major.minor as 52.0.
Ways around this are
1. Have 2 jdo-api jars. One for java7 and one for java8 (with the java.time
support), and the user pulls in the one they require.
2. Just move to java8 minimum
> Support for java.time types, and querying using associated methods
> ------------------------------------------------------------------
>
> Key: JDO-749
> URL: https://issues.apache.org/jira/browse/JDO-749
> Project: JDO
> Issue Type: New Feature
> Components: api, specification, tck
> Reporter: Andy Jefferson
> Fix For: JDO 3.2
>
>
> Refer to an associated issue for JPA for what support should look like
> https://java.net/jira/browse/JPA_SPEC-63
> The methods that should be supported in queries would initially be
> LocalDateTime : getDayOfMonth, getMonth, getYear, getHour, getMinute,
> getSecond
> LocalTime : getHour, getMinute, getSecond
> LocalDate : getDayOfMonth, getMonth, getYear
> These would need to be part of JDOQL string-based, as well as the
> JDOQLTypedQuery (hence have equivalent Expression classes).
> Note that all of these are already implemented in DataNucleus, and there are
> JDOQLTypedQuery expression classes available.
> Timing of this simply depends on the JRE that the next release of JDO is
> targetted at, since this needs Java 8.
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