org.firebirdsql.gds.impl

## Interface ParameterBufferMetaData

- All Known Implementing Classes:
    DatabaseParameterBufferImp.DpbMetaData, ServiceParameterBufferImp.SpbMetaData, ServiceRequestBufferImp.SrbMetaData, TransactionParameterBufferImpl.TpbMetaData

      public interface ParameterBufferMetaData

  Additional metadata for parameter buffer behavior.
  Since:
    3.0
  Author:
    Mark Rotteveel

- - ### Method Summary

    Methods
    Modifier and Type | Method and Description
    --- | ---
    `void` | `addPreamble(ParameterBuffer parameterBuffer)` Allows the metadata to add a preamble to the parameter buffer.
    `ArgumentType` | `getByteArrayArgumentType(int tag)` Gets the byte array argument type for the supplied tag.
    `ArgumentType` | `getIntegerArgumentType(int tag)` Gets the byte array argument type for the supplied tag.
    `ArgumentType` | `getStringArgumentType(int tag)` Gets the string argument type for the supplied tag.
    `int` | `getType()` Parameter buffer type (this usually is the version of the parameter buffer).

- - ### Method Detail

    - #### getType

          int getType()

      Parameter buffer type (this usually is the version of the parameter buffer).
      Returns:
        Buffer type (for example `ISCConstants.isc_spb_version3`).

    - #### addPreamble

          void addPreamble(ParameterBuffer parameterBuffer)

      Allows the metadata to add a preamble to the parameter buffer.

      This is only intended for the weird "version 2" connection service parameter buffer that requires two tags for the version with `isc_spb_version, isc_spb_current_version`.

      Parameters:
        `parameterBuffer` - Parameter buffer.

    - #### getStringArgumentType

          ArgumentType getStringArgumentType(int tag)

      Gets the string argument type for the supplied tag.

      When the tag is not known (or unsupported for string arguments), then the default should be returned.

      Parameters:
        `tag` - Tag (item type)
      Returns:
        Argument type (never `null`)

    - #### getByteArrayArgumentType

          ArgumentType getByteArrayArgumentType(int tag)

      Gets the byte array argument type for the supplied tag.

      When the tag is not known (or unsupported for string arguments), then the default should be returned.

      Parameters:
        `tag` - Tag (item type)
      Returns:
        Argument type (never `null`)

    - #### getIntegerArgumentType

          ArgumentType getIntegerArgumentType(int tag)

      Gets the byte array argument type for the supplied tag.

      When the tag is not known (or unsupported for string arguments), then the default should be returned.

      Parameters:
        `tag` - Tag (item type)
      Returns:
        Argument type (never `null`)

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