Package com.apple.foundationdb.relational.util

Class PositionalIndex

  • @API(EXPERIMENTAL)
public class PositionalIndex
extends java.lang.Object
    The field positional offset/index is zero-based in protobuf but one-based in JDBC. Below is small utility for going between the different indexing modes.

    • Constructor Summary

      Constructors 
      Constructor Description
      PositionalIndex()  

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static int toJDBC​(int zeroBasedProtobufIndex)
      Adjust 'zeroBasedIndex' so can be used as a one-based JDBC index.
      static int toProtobuf​(int oneBasedIndex)
      Adjust 'oneBasedIndex' so can be used as a zero-based protobuf index.

      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

    • Constructor Detail

      • PositionalIndex

        public PositionalIndex()

    • Method Detail

      • toProtobuf

        public static int toProtobuf​(int oneBasedIndex)
        Adjust 'oneBasedIndex' so can be used as a zero-based protobuf index.
        Parameters:
        oneBasedIndex - JDBC indices are oneBased; i.e. first item is at postion 1.
        Returns:
        Protobuf index derived from oneBasedIndex.

      • toJDBC

        public static int toJDBC​(int zeroBasedProtobufIndex)
        Adjust 'zeroBasedIndex' so can be used as a one-based JDBC index.
        Parameters:
        zeroBasedProtobufIndex - Protobuf zero-based index.
        Returns:
        An index that can be used on JDBC types.