Package org.eclipse.persistence.queries

Class ObjectLevelModifyQuery

  • All Implemented Interfaces:
    java.io.Serializable, java.lang.Cloneable
    Direct Known Subclasses:
    DeleteObjectQuery, WriteObjectQuery
    public abstract class ObjectLevelModifyQuery
extends ModifyQuery

    Purpose: Abstract class for all object modify queries.

    Responsibilities:

    • Stores & retrieves the object to modify.
    • Stores & retrieves the primary key of the objects.
    Since:
    TOPLink/Java 1.0
    Author:
    Yvon Lavoie
    See Also:
    Serialized Form

    • Field Detail

      • primaryKey

        protected java.lang.Object primaryKey

      • object

        protected java.lang.Object object

      • backupClone

        protected java.lang.Object backupClone

    • Constructor Detail

      • ObjectLevelModifyQuery

        public ObjectLevelModifyQuery()
        PUBLIC: Initialize the state of the query.

    • Method Detail

      • executeInUnitOfWork

        public java.lang.Object executeInUnitOfWork​(UnitOfWorkImpl unitOfWork,
                                            AbstractRecord translationRow)
                                     throws DatabaseException
        INTERNAL: All have done is move code from UnitOfWork.internalExecuteQuery
        Overrides:
        executeInUnitOfWork in class DatabaseQuery
        Parameters:
        unitOfWork - - the session in which the receiver will be executed.
        translationRow - - the arguments
        Returns:
        An object, the result of executing the query.
        Throws:
        DatabaseException - - an error has occurred on the database.

      • getBackupClone

        public java.lang.Object getBackupClone()
        INTERNAL: Return the backup clone of the object from the unit of work.

      • getObject

        public java.lang.Object getObject()
        PUBLIC: Return the object required for modification.

      • getObjectChangeSet

        public ObjectChangeSet getObjectChangeSet()
        PUBLIC: Return the ObjectChangeSet representing the object being changed

      • getPrimaryKey

        public java.lang.Object getPrimaryKey()
        INTERNAL: Get the primary key for the query

      • getReferenceClass

        public java.lang.Class getReferenceClass()
        Return the domain class associated with this query.
        Overrides:
        getReferenceClass in class DatabaseQuery

      • getReferenceClassName

        public java.lang.String getReferenceClassName()
        INTERNAL: Return the reference class for a query Note: Although the API is designed to avoid classpath dependencies for the MW, since the object is specified at runtime, this will not be an issue.
        Overrides:
        getReferenceClassName in class DatabaseQuery

      • resetMonitorName

        public void resetMonitorName()
        INTERNAL: Return the name to use for the query in performance monitoring.
        Overrides:
        resetMonitorName in class DatabaseQuery

      • isObjectLevelModifyQuery

        public boolean isObjectLevelModifyQuery()
        PUBLIC: Return if this is an object level modify query.
        Overrides:
        isObjectLevelModifyQuery in class DatabaseQuery

      • prepare

        protected void prepare()
                throws QueryException
        INTERNAL: Prepare the receiver for execution in a session. In particular check that the tables on the descriptor are set.
        Overrides:
        prepare in class DatabaseQuery
        Throws:
        QueryException

      • setBackupClone

        public void setBackupClone​(java.lang.Object backupClone)
        INTERNAL: Set the backup clone of the object from the unit of work.

      • setObject

        public void setObject​(java.lang.Object object)
        PUBLIC: (REQUIRED) Set the object required for modification.

      • setObjectChangeSet

        public void setObjectChangeSet​(ObjectChangeSet changeSet)
        INTERNAL: Set the ObjectChangeSet representing the object to be written

      • setPrimaryKey

        public void setPrimaryKey​(java.lang.Object primaryKey)
        INTERNAL: Set the primary key for the query.