Package com.exonum.binding.common.proofs.list

Interface CheckedListProof<E>

All Superinterfaces:
CheckedProof
All Known Implementing Classes:
CheckedListProofImpl
public interface CheckedListProof<E>
extends CheckedProof
A proof that some elements exist in a proof list. Example usage: 

 HashCode expectedIndexHash = // get a known index hash from block proof //
 UncheckedListProof proof = new UncheckedListProofAdapter(rootProofNode, serializer);
 // Check the proof
 CheckedListProof checkedProof = proof.check();
 // Check the index hash
 if (checkedProof.isValid() && checkedProof.getIndexHash().equals(expectedIndexHash)) {
   // Get and use elements
   NavigableMap value = checkedProof.getElements();
 }

  • Method Summary

    Modifier and Type Method Description
    java.util.NavigableMap<java.lang.Long,​E> getElements()
    Get all list proof elements.
    ListProofStatus getProofStatus()
    Returns the status of this proof: whether it is structurally valid.
    long size()
    Returns the size of the list: the total number of elements in it.

    Methods inherited from interface com.exonum.binding.common.proofs.CheckedProof

    getIndexHash, isValid

  • Method Details

    • size

      long size()
      Returns the size of the list: the total number of elements in it.

    • getElements

      java.util.NavigableMap<java.lang.Long,​E> getElements()
      Get all list proof elements. There might be several consecutive ranges.
      Returns:
      list proof elements. Empty if the proof is a proof of absence
      Throws:
      java.lang.IllegalStateException - if the proof is not valid

    • getProofStatus

      ListProofStatus getProofStatus()
      Returns the status of this proof: whether it is structurally valid.
      Specified by:
      getProofStatus in interface CheckedProof