Module org.eclipse.persistence.core
Package org.eclipse.persistence.queries

Interface Call

All Superinterfaces:
Cloneable, Serializable
All Known Subinterfaces:
QueryStringCall
All Known Implementing Classes:
DatabaseCall, DatasourceCall, EISInteraction, IndexedInteraction, JPQLCall, MappedInteraction, PLSQLStoredFunctionCall, PLSQLStoredProcedureCall, QueryStringInteraction, SQLCall, StoredFunctionCall, StoredProcedureCall, XMLInteraction, XQueryInteraction
public interface Call extends Cloneable, Serializable
Call defines the interface used primarily by EclipseLink queries and query mechanisms to perform the necessary actions (read, insert, update, delete) on the data store. A Call can collaborate with an Accessor to perform its responsibilities. The only explicit requirement of a Call is that it be able to supply the appropriate query mechanism for performing its duties. Otherwise, the Call is pretty much unrestricted as to how it should perform its responsibilities.
Since:
TOPLink/Java 3.0
See Also:

  • Method Details

    • buildNewQueryMechanism

      DatabaseQueryMechanism buildNewQueryMechanism(DatabaseQuery query)
      INTERNAL: Return the appropriate mechanism, with the call set as necessary.

    • buildQueryMechanism

      DatabaseQueryMechanism buildQueryMechanism(DatabaseQuery query, DatabaseQueryMechanism mechanism)
      INTERNAL: Return the appropriate mechanism, with the call added as necessary.

    • clone

      Object clone()
      INTERNAL: Return a clone of the call.

    • getLogString

      String getLogString(Accessor accessor)
      INTERNAL: Return a string appropriate for the session log.

    • isFinished

      boolean isFinished()
      INTERNAL: Return whether the call is finished returning all of its results (e.g. a call that returns a cursor will answer false).

    • isNothingReturned

      boolean isNothingReturned()
      The return type is one of, NoReturn, ReturnOneRow or ReturnManyRows.

    • isOneRowReturned

      boolean isOneRowReturned()
      The return type is one of, NoReturn, ReturnOneRow or ReturnManyRows.