Package org.apache.iceberg.util

Class SnapshotUtil

  • public class SnapshotUtil
extends java.lang.Object

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static java.util.List<java.lang.Long> ancestorIds​(Snapshot snapshot, java.util.function.Function<java.lang.Long,​Snapshot> lookup)  
      static boolean ancestorOf​(Table table, long snapshotId, long ancestorSnapshotId)  
      static java.util.List<java.lang.Long> currentAncestors​(Table table)
      Return the snapshot IDs for the ancestors of the current table state.
      static java.util.List<DataFile> newFiles​(java.lang.Long baseSnapshotId, long latestSnapshotId, java.util.function.Function<java.lang.Long,​Snapshot> lookup)  
      static java.util.List<java.lang.Long> snapshotIdsBetween​(Table table, long fromSnapshotId, long toSnapshotId)  

      • Methods inherited from class java.lang.Object

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

    • Method Detail

      • ancestorOf

        public static boolean ancestorOf​(Table table,
                                 long snapshotId,
                                 long ancestorSnapshotId)
        Returns:
        whether ancestorSnapshotId is an ancestor of snapshotId

      • currentAncestors

        public static java.util.List<java.lang.Long> currentAncestors​(Table table)
        Return the snapshot IDs for the ancestors of the current table state.

        Ancestor IDs are ordered by commit time, descending. The first ID is the current snapshot, followed by its parent, and so on.

        Parameters:
        table - a Table
        Returns:
        a set of snapshot IDs of the known ancestor snapshots, including the current ID

      • snapshotIdsBetween

        public static java.util.List<java.lang.Long> snapshotIdsBetween​(Table table,
                                                                long fromSnapshotId,
                                                                long toSnapshotId)
        Returns:
        List of snapshot ids in the range - (fromSnapshotId, toSnapshotId] This method assumes that fromSnapshotId is an ancestor of toSnapshotId

      • ancestorIds

        public static java.util.List<java.lang.Long> ancestorIds​(Snapshot snapshot,
                                                         java.util.function.Function<java.lang.Long,​Snapshot> lookup)

      • newFiles

        public static java.util.List<DataFile> newFiles​(java.lang.Long baseSnapshotId,
                                                long latestSnapshotId,
                                                java.util.function.Function<java.lang.Long,​Snapshot> lookup)