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Improve SQL prepared statement caching in HSQLDBAccountRepository.getEligibleLegacyQoraHolders()

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catbref 2020-09-21 16:29:34 +01:00
parent 1720582f33
commit 43055b666f
1 changed files with 5 additions and 3 deletions
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8
src/main/java/org/qortal/repository/hsqldb/HSQLDBAccountRepository.java
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@ -932,6 +932,8 @@ public class HSQLDBAccountRepository implements AccountRepository {
@Override @Override
public List<EligibleQoraHolderData> getEligibleLegacyQoraHolders(Integer blockHeight) throws DataException { public List<EligibleQoraHolderData> getEligibleLegacyQoraHolders(Integer blockHeight) throws DataException {
StringBuilder sql = new StringBuilder(1024); StringBuilder sql = new StringBuilder(1024);
List<Object> bindParams = new ArrayList<>();
sql.append("SELECT account, Qora.balance, QortFromQora.balance, final_qort_from_qora, final_block_height "); sql.append("SELECT account, Qora.balance, QortFromQora.balance, final_qort_from_qora, final_block_height ");
sql.append("FROM AccountBalances AS Qora "); sql.append("FROM AccountBalances AS Qora ");
sql.append("LEFT OUTER JOIN AccountQortFromQoraInfo USING (account) "); sql.append("LEFT OUTER JOIN AccountQortFromQoraInfo USING (account) ");
@ -942,15 +944,15 @@ public class HSQLDBAccountRepository implements AccountRepository {
sql.append(" AND (final_block_height IS NULL"); sql.append(" AND (final_block_height IS NULL");
if (blockHeight != null) { if (blockHeight != null) {
sql.append(" OR final_block_height >= "); sql.append(" OR final_block_height >= ?");
sql.append(blockHeight); bindParams.add(blockHeight);
} }
sql.append(")"); sql.append(")");
List<EligibleQoraHolderData> eligibleLegacyQoraHolders = new ArrayList<>(); List<EligibleQoraHolderData> eligibleLegacyQoraHolders = new ArrayList<>();
try (ResultSet resultSet = this.repository.checkedExecute(sql.toString())) { try (ResultSet resultSet = this.repository.checkedExecute(sql.toString(), bindParams.toArray())) {
if (resultSet == null) if (resultSet == null)
return eligibleLegacyQoraHolders; return eligibleLegacyQoraHolders;