remove unnecessary interface

blockindex/contractstaking/indexer.go

@@ -15,7 +15,6 @@ import (
 	"github.com/pkg/errors"
 
 	"github.com/iotexproject/iotex-core/blockchain/block"
-	"github.com/iotexproject/iotex-core/blockchain/blockdao"
 	"github.com/iotexproject/iotex-core/db"
 )
 
@@ -24,25 +23,6 @@ const (
 )
 
 type (
-	// ContractIndexer defines the interface of contract staking reader
-	ContractIndexer interface {
-		blockdao.BlockIndexerWithStart
-
-		// CandidateVotes returns the total staked votes of a candidate
-		// candidate identified by owner address
-		CandidateVotes(ownerAddr address.Address) *big.Int
-		// Buckets returns active buckets
-		Buckets() ([]*Bucket, error)
-		// BucketsByIndices returns active buckets by indices
-		BucketsByIndices([]uint64) ([]*Bucket, error)
-		// BucketsByCandidate returns active buckets by candidate
-		BucketsByCandidate(ownerAddr address.Address) ([]*Bucket, error)
-		// TotalBucketCount returns the total number of buckets including burned buckets
-		TotalBucketCount() uint64
-		// BucketTypes returns the active bucket types
-		BucketTypes() ([]*BucketType, error)
-	}
-
 	// Indexer is the contract staking indexer
 	// Main functions:
 	// 		1. handle contract staking contract events when new block comes to generate index data

chainservice/chainservice.go

@@ -87,7 +87,7 @@ type ChainService struct {
 	candidateIndexer       *poll.CandidateIndexer
 	candBucketsIndexer     *staking.CandidatesBucketsIndexer
 	sgdIndexer             blockindex.SGDRegistry
-	contractStakingIndexer contractstaking.ContractIndexer
+	contractStakingIndexer *contractstaking.Indexer
 	registry               *protocol.Registry
 	nodeInfoManager        *nodeinfo.InfoManager
 	apiStats               *nodestats.APILocalStats