Package org.eclipse.persistence.queries

Interface Call

All Superinterfaces:
Cloneable, Serializable
All Known Implementing Classes:
org.eclipse.persistence.internal.databaseaccess.DatabaseCall, org.eclipse.persistence.internal.databaseaccess.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.
See Also:
Author:
Big Country

  • Method Summary

    Modifier and Type
    Method
    Description
    org.eclipse.persistence.internal.queries.DatabaseQueryMechanism
    buildNewQueryMechanism(DatabaseQuery query)
    INTERNAL: Return the appropriate mechanism, with the call set as necessary.
    org.eclipse.persistence.internal.queries.DatabaseQueryMechanism
    buildQueryMechanism(DatabaseQuery query, org.eclipse.persistence.internal.queries.DatabaseQueryMechanism mechanism)
    INTERNAL: Return the appropriate mechanism, with the call added as necessary.
    Object
    clone()
    INTERNAL: Return a clone of the call.
    String
    getLogString(org.eclipse.persistence.internal.databaseaccess.Accessor accessor)
    INTERNAL: Return a string appropriate for the session log.
    boolean
    isFinished()
    INTERNAL: Return whether the call is finished returning all of its results (e.g.
    boolean
    isNothingReturned()
    The return type is one of, NoReturn, ReturnOneRow or ReturnManyRows.
    boolean
    isOneRowReturned()
    The return type is one of, NoReturn, ReturnOneRow or ReturnManyRows.

  • Method Details

    • buildNewQueryMechanism

      org.eclipse.persistence.internal.queries.DatabaseQueryMechanism buildNewQueryMechanism(DatabaseQuery query)
      INTERNAL: Return the appropriate mechanism, with the call set as necessary.

    • buildQueryMechanism

      org.eclipse.persistence.internal.queries.DatabaseQueryMechanism buildQueryMechanism(DatabaseQuery query, org.eclipse.persistence.internal.queries.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(org.eclipse.persistence.internal.databaseaccess.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.