Module org.apache.lucene.core
Package org.apache.lucene.index

Record Class LeafMetaData

java.lang.Object
java.lang.Record
org.apache.lucene.index.LeafMetaData
Record Components:
createdVersionMajor - the Lucene version that created this index. This can be used to implement backward compatibility on top of the codec API. A return value of 6 indicates that the created version is unknown.
minVersion - the minimum Lucene version that contributed documents to this index, or null if this information is not available.
sort - the order in which documents from this index are sorted, or null if documents are in no particular order.
hasBlocks - Returns true iff this index contains blocks created with IndexWriter.addDocument(Iterable) or it's corresponding update methods with at least 2 or more documents per call. Note: This property was not recorded before Version.LUCENE_9_9_0 this method will return false for all leaves written before Version.LUCENE_9_9_0
public record LeafMetaData(int createdVersionMajor, Version minVersion, Sort sort, boolean hasBlocks) extends Record
Provides read-only metadata about a leaf.
See Also:

  • Field Details

    • createdVersionMajor

      private final int createdVersionMajor
      The field for the createdVersionMajor record component.

    • minVersion

      private final Version minVersion
      The field for the minVersion record component.

    • sort

      private final Sort sort
      The field for the sort record component.

    • hasBlocks

      private final boolean hasBlocks
      The field for the hasBlocks record component.

  • Constructor Details

    • LeafMetaData

      public LeafMetaData(int createdVersionMajor, Version minVersion, Sort sort, boolean hasBlocks)
      Expert: Sole constructor. Public for use by custom LeafReader impls.

  • Method Details

    • toString

      public final String toString()
      Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.
      Specified by:
      toString in class Record
      Returns:
      a string representation of this object

    • hashCode

      public final int hashCode()
      Returns a hash code value for this object. The value is derived from the hash code of each of the record components.
      Specified by:
      hashCode in class Record
      Returns:
      a hash code value for this object

    • equals

      public final boolean equals(Object o)
      Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with '=='.
      Specified by:
      equals in class Record
      Parameters:
      o - the object with which to compare
      Returns:
      true if this object is the same as the o argument; false otherwise.

    • createdVersionMajor

      public int createdVersionMajor()
      Returns the value of the createdVersionMajor record component.
      Returns:
      the value of the createdVersionMajor record component

    • minVersion

      public Version minVersion()
      Returns the value of the minVersion record component.
      Returns:
      the value of the minVersion record component

    • sort

      public Sort sort()
      Returns the value of the sort record component.
      Returns:
      the value of the sort record component

    • hasBlocks

      public boolean hasBlocks()
      Returns the value of the hasBlocks record component.
      Returns:
      the value of the hasBlocks record component