Module org.postgresql.pljava.internal
Package org.postgresql.pljava.jdbc

Interface SPIReadOnlyControl

All Known Implementing Classes:
SPIPreparedStatement, SPIStatement
public interface SPIReadOnlyControl
An extended interface on Statement (accessible with unwrap()) allowing control of the read_only flag that PostgreSQL SPI will see when the statement is next executed.

Currently an internal interface, not in pljava-api, as the known need so far is just for the internal class loader.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    clearReadOnly()
    Specify that the statement, when next executed, will have have read_only set to false unconditionally.
    void
    defaultReadOnly()
    Specify that the statement, when next executed, will have the behavior recommended in the PostgreSQL SPI documentation: read_only will be set to true if the currently-executing PL/Java function is declared IMMUTABLE, false otherwise.
    void
    forceReadOnly()
    Specify that the statement, when next executed, will have have read_only set to true unconditionally.

  • Method Details

    • defaultReadOnly

      void defaultReadOnly()
      Specify that the statement, when next executed, will have the behavior recommended in the PostgreSQL SPI documentation: read_only will be set to true if the currently-executing PL/Java function is declared IMMUTABLE, false otherwise.

    • forceReadOnly

      void forceReadOnly()
      Specify that the statement, when next executed, will have have read_only set to true unconditionally.

    • clearReadOnly

      void clearReadOnly()
      Specify that the statement, when next executed, will have have read_only set to false unconditionally.