Devlive 开源社区 本次搜索耗时 0.662 秒,为您找到 59 个相关结果.
  • Cleaning

    3967 2024-06-30 《Apache Hudi 0.15.0》
    Background Cleaning Retention Policies Configs Ways to trigger Cleaning Inline Async Run independently CLI Related Resources Background Cleaning is a table service emplo...
  • Fetch Plan/Groups

    3911 2024-05-25 《Apache JDO 3.2.1》
    Default Fetch Group Named Fetch Groups Dynamic Fetch Groups Fetch Depth Fetch Size When an object is retrieved from the datastore by JDO typically not all fields are retrieve...
  • Annotations

    3892 2024-05-25 《Apache JDO 3.2.1》
    @PersistenceCapable @PersistenceAware @Cacheable @EmbeddedOnly @Inheritance @Discriminator @DatastoreIdentity @Version @PrimaryKey @FetchPlans @FetchPlan @FetchGroups @...
  • Attach-Detach

    3877 2024-05-25 《Apache JDO 3.2.1》
    Detach All On Commit Copy On Attach Serialization of Detachable classes JDO provides an interface to the persistence of objects. JDO 1.0 didn’t provide a way of taking an objec...
  • JDO v JPA

    3658 2024-05-25 《Apache JDO 3.2.1》
    There are several competing persistence technologies available for Java. Two of these are “standardised” (via the JCP). When developing your application you need to choose the mos...
  • JDOQL

    3618 2024-05-25 《Apache JDO 3.2.1》
    JDOQL Single-String JDOQL Accessing Fields Data types : literals Operators precedence Concatenation Expressions Example 1 - Use of Explicit Parameters Example 2 - Use of Impl...
  • SQL

    3595 2024-05-25 《Apache JDO 3.2.1》
    Setting candidate class Unique results Defining a result type Parameters As we have described earlier, JDO allows access to many query languages to give the user full flexibil...
  • PersistenceManager

    3512 2024-05-25 《Apache JDO 3.2.1》
    Persist Objects Retrieve Objects Update Objects Delete Objects Making an object transient Any JDO-enabled application will require at least one PersistenceManager (PM). This ...
  • Why JDO?

    3413 2024-05-25 《Apache JDO 3.2.1》
    The majority of applications need to persist (or store) data during their lifecycle. There are many ways of doing this with an application written in Java. If your datastore is ...
  • Types of Fields

    3387 2024-05-25 《Apache JDO 3.2.1》
    Supported Java Types First-Class (FCO) Types Second-Class (SCO) Types Simple Types Temporal Types Collection/Map Types Array Types JDO Attribute Converters Supported Java...