diff --git a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/DatabaseBasedPersistService.java b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/DatabaseBasedPersistService.java
index 0232d5a79fabe..f9b7840449db0 100644
--- a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/DatabaseBasedPersistService.java
+++ b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/DatabaseBasedPersistService.java
@@ -67,17 +67,17 @@ default T load(String databaseName, String name) {
      * Delete configurations.
      *
      * @param databaseName database name
-     * @param configs configurations
+     * @param configs to be deleted configurations
      * @return meta data versions
      */
-    Collection<MetaDataVersion> deleteConfig(String databaseName, T configs);
+    Collection<MetaDataVersion> deleteConfigurations(String databaseName, T configs);
     
     /**
      * Persist configurations.
      *
      * @param databaseName database name
-     * @param configs configurations
+     * @param configs to be persisted configurations
      * @return meta data versions
      */
-    Collection<MetaDataVersion> persistConfig(String databaseName, T configs);
+    Collection<MetaDataVersion> persistConfigurations(String databaseName, T configs);
 }
diff --git a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/datasource/DataSourceNodePersistService.java b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/datasource/DataSourceNodePersistService.java
index 62502f8bfcae0..370c8501793ce 100644
--- a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/datasource/DataSourceNodePersistService.java
+++ b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/datasource/DataSourceNodePersistService.java
@@ -88,7 +88,7 @@ public void delete(final String databaseName, final String name) {
     }
     
     @Override
-    public Collection<MetaDataVersion> deleteConfig(final String databaseName, final Map<String, DataSourcePoolProperties> dataSourceConfigs) {
+    public Collection<MetaDataVersion> deleteConfigurations(final String databaseName, final Map<String, DataSourcePoolProperties> dataSourceConfigs) {
         Collection<MetaDataVersion> result = new LinkedList<>();
         for (Entry<String, DataSourcePoolProperties> entry : dataSourceConfigs.entrySet()) {
             String delKey = DataSourceMetaDataNode.getDataSourceNodeNode(databaseName, entry.getKey());
@@ -99,7 +99,7 @@ public Collection<MetaDataVersion> deleteConfig(final String databaseName, final
     }
     
     @Override
-    public Collection<MetaDataVersion> persistConfig(final String databaseName, final Map<String, DataSourcePoolProperties> dataSourceConfigs) {
+    public Collection<MetaDataVersion> persistConfigurations(final String databaseName, final Map<String, DataSourcePoolProperties> dataSourceConfigs) {
         Collection<MetaDataVersion> result = new LinkedList<>();
         for (Entry<String, DataSourcePoolProperties> entry : dataSourceConfigs.entrySet()) {
             List<String> versions = repository.getChildrenKeys(DataSourceMetaDataNode.getDataSourceNodeVersionsNode(databaseName, entry.getKey()));
diff --git a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/datasource/DataSourceUnitPersistService.java b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/datasource/DataSourceUnitPersistService.java
index 26dcd9879f475..b18ab364fcadc 100644
--- a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/datasource/DataSourceUnitPersistService.java
+++ b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/datasource/DataSourceUnitPersistService.java
@@ -88,7 +88,7 @@ public void delete(final String databaseName, final String name) {
     }
     
     @Override
-    public Collection<MetaDataVersion> deleteConfig(final String databaseName, final Map<String, DataSourcePoolProperties> dataSourceConfigs) {
+    public Collection<MetaDataVersion> deleteConfigurations(final String databaseName, final Map<String, DataSourcePoolProperties> dataSourceConfigs) {
         Collection<MetaDataVersion> result = new LinkedList<>();
         for (Entry<String, DataSourcePoolProperties> entry : dataSourceConfigs.entrySet()) {
             String delKey = DataSourceMetaDataNode.getDataSourceUnitNode(databaseName, entry.getKey());
@@ -99,7 +99,7 @@ public Collection<MetaDataVersion> deleteConfig(final String databaseName, final
     }
     
     @Override
-    public Collection<MetaDataVersion> persistConfig(final String databaseName, final Map<String, DataSourcePoolProperties> dataSourceConfigs) {
+    public Collection<MetaDataVersion> persistConfigurations(final String databaseName, final Map<String, DataSourcePoolProperties> dataSourceConfigs) {
         Collection<MetaDataVersion> result = new LinkedList<>();
         for (Entry<String, DataSourcePoolProperties> entry : dataSourceConfigs.entrySet()) {
             List<String> versions = repository.getChildrenKeys(DataSourceMetaDataNode.getDataSourceUnitVersionsNode(databaseName, entry.getKey()));
diff --git a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/rule/DatabaseRulePersistService.java b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/rule/DatabaseRulePersistService.java
index 6bc5ef3ae3761..3316d2e60ca40 100644
--- a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/rule/DatabaseRulePersistService.java
+++ b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/database/rule/DatabaseRulePersistService.java
@@ -32,7 +32,6 @@
 import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.Map;
 import java.util.Map.Entry;
 
 /**
@@ -52,8 +51,7 @@ public DatabaseRulePersistService(final PersistRepository repository) {
     @SuppressWarnings({"unchecked", "rawtypes"})
     @Override
     public void persist(final String databaseName, final Collection<RuleConfiguration> configs) {
-        Map<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> yamlConfigs = new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs);
-        for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) {
+        for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs).entrySet()) {
             Collection<RepositoryTuple> repositoryTuples = entry.getValue().swapToRepositoryTuples(entry.getKey());
             if (!repositoryTuples.isEmpty()) {
                 persistDataNodes(databaseName, entry.getValue().getRuleTagName().toLowerCase(), repositoryTuples);
@@ -63,8 +61,8 @@ public void persist(final String databaseName, final Collection<RuleConfiguratio
     
     @Override
     public Collection<RuleConfiguration> load(final String databaseName) {
-        Collection<RepositoryTuple> repositoryTuple = getRepositoryTuple(DatabaseRuleMetaDataNode.getRulesNode(databaseName));
-        return repositoryTuple.isEmpty() ? Collections.emptyList() : new YamlDataNodeRuleConfigurationSwapperEngine().swapToRuleConfigurations(repositoryTuple);
+        Collection<RepositoryTuple> repositoryTuples = getRepositoryTuple(DatabaseRuleMetaDataNode.getRulesNode(databaseName));
+        return repositoryTuples.isEmpty() ? Collections.emptyList() : new YamlDataNodeRuleConfigurationSwapperEngine().swapToRuleConfigurations(repositoryTuples);
     }
     
     @Override
@@ -74,10 +72,9 @@ public void delete(final String databaseName, final String name) {
     
     @SuppressWarnings({"unchecked", "rawtypes"})
     @Override
-    public Collection<MetaDataVersion> persistConfig(final String databaseName, final Collection<RuleConfiguration> configs) {
+    public Collection<MetaDataVersion> persistConfigurations(final String databaseName, final Collection<RuleConfiguration> configs) {
         Collection<MetaDataVersion> result = new LinkedList<>();
-        Map<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> yamlConfigs = new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs);
-        for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) {
+        for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs).entrySet()) {
             Collection<RepositoryTuple> repositoryTuples = entry.getValue().swapToRepositoryTuples(entry.getKey());
             if (!repositoryTuples.isEmpty()) {
                 result.addAll(persistDataNodes(databaseName, entry.getValue().getRuleTagName().toLowerCase(), repositoryTuples));
@@ -102,10 +99,9 @@ private Collection<MetaDataVersion> persistDataNodes(final String databaseName,
     
     @SuppressWarnings({"unchecked", "rawtypes"})
     @Override
-    public Collection<MetaDataVersion> deleteConfig(final String databaseName, final Collection<RuleConfiguration> configs) {
+    public Collection<MetaDataVersion> deleteConfigurations(final String databaseName, final Collection<RuleConfiguration> configs) {
         Collection<MetaDataVersion> result = new LinkedList<>();
-        Map<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> yamlConfigs = new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs);
-        for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) {
+        for (Entry<RuleConfiguration, YamlDataNodeRuleConfigurationSwapper> entry : new YamlDataNodeRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(configs).entrySet()) {
             Collection<RepositoryTuple> repositoryTuples = entry.getValue().swapToRepositoryTuples(entry.getKey());
             if (repositoryTuples.isEmpty()) {
                 continue;
diff --git a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/global/GlobalRulePersistService.java b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/global/GlobalRulePersistService.java
index 157af02fb39f8..514670167d1ec 100644
--- a/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/global/GlobalRulePersistService.java
+++ b/kernel/metadata/core/src/main/java/org/apache/shardingsphere/metadata/persist/service/config/global/GlobalRulePersistService.java
@@ -31,7 +31,6 @@
 import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
-import java.util.Map;
 import java.util.Map.Entry;
 
 /**
@@ -51,8 +50,8 @@ public GlobalRulePersistService(final PersistRepository repository) {
     @SuppressWarnings({"unchecked", "rawtypes"})
     @Override
     public void persist(final Collection<RuleConfiguration> globalRuleConfigs) {
-        Map<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> yamlConfigs = new YamlDataNodeGlobalRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(globalRuleConfigs);
-        for (Entry<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) {
+        for (Entry<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> entry : new YamlDataNodeGlobalRuleConfigurationSwapperEngine()
+                .swapToYamlRuleConfigurations(globalRuleConfigs).entrySet()) {
             Collection<RepositoryTuple> repositoryTuples = entry.getValue().swapToRepositoryTuples(entry.getKey());
             if (!repositoryTuples.isEmpty()) {
                 persistDataNodes(repositoryTuples);
@@ -64,8 +63,8 @@ public void persist(final Collection<RuleConfiguration> globalRuleConfigs) {
     @Override
     public Collection<MetaDataVersion> persistConfigurations(final Collection<RuleConfiguration> globalRuleConfigs) {
         Collection<MetaDataVersion> result = new LinkedList<>();
-        Map<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> yamlConfigs = new YamlDataNodeGlobalRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(globalRuleConfigs);
-        for (Entry<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) {
+        for (Entry<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> entry : new YamlDataNodeGlobalRuleConfigurationSwapperEngine()
+                .swapToYamlRuleConfigurations(globalRuleConfigs).entrySet()) {
             Collection<RepositoryTuple> repositoryTuples = entry.getValue().swapToRepositoryTuples(entry.getKey());
             if (!repositoryTuples.isEmpty()) {
                 result.addAll(persistDataNodes(repositoryTuples));
@@ -91,13 +90,13 @@ private Collection<MetaDataVersion> persistDataNodes(final Collection<Repository
     
     @Override
     public Collection<RuleConfiguration> load() {
-        Collection<RepositoryTuple> repositoryTuple = getRepositoryTuple(GlobalNode.getGlobalRuleRootNode());
-        return repositoryTuple.isEmpty() ? Collections.emptyList() : new YamlDataNodeGlobalRuleConfigurationSwapperEngine().swapToRuleConfigurations(repositoryTuple);
+        Collection<RepositoryTuple> repositoryTuples = getRepositoryTuple(GlobalNode.getGlobalRuleRootNode());
+        return repositoryTuples.isEmpty() ? Collections.emptyList() : new YamlDataNodeGlobalRuleConfigurationSwapperEngine().swapToRuleConfigurations(repositoryTuples);
     }
     
     @Override
     public RuleConfiguration load(final String ruleName) {
-        Collection<RepositoryTuple> repositoryTuple = getRepositoryTuple(GlobalNode.getGlobalRuleNode(ruleName));
-        return new YamlDataNodeGlobalRuleConfigurationSwapperEngine().swapSingleRuleToRuleConfiguration(ruleName, repositoryTuple).orElse(null);
+        Collection<RepositoryTuple> repositoryTuples = getRepositoryTuple(GlobalNode.getGlobalRuleNode(ruleName));
+        return new YamlDataNodeGlobalRuleConfigurationSwapperEngine().swapSingleRuleToRuleConfiguration(ruleName, repositoryTuples).orElse(null);
     }
 }
diff --git a/mode/core/src/main/java/org/apache/shardingsphere/mode/manager/context/ConfigurationContextManager.java b/mode/core/src/main/java/org/apache/shardingsphere/mode/manager/context/ConfigurationContextManager.java
index 8f281988218d4..55364ba04895e 100644
--- a/mode/core/src/main/java/org/apache/shardingsphere/mode/manager/context/ConfigurationContextManager.java
+++ b/mode/core/src/main/java/org/apache/shardingsphere/mode/manager/context/ConfigurationContextManager.java
@@ -376,9 +376,8 @@ public synchronized void alterGlobalRuleConfiguration(final RuleConfiguration ru
     @SuppressWarnings("rawtypes")
     @SneakyThrows(Exception.class)
     private void closeStaleTransactionRule(final RuleConfiguration ruleConfig) {
-        Map<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> yamlConfigs =
-                new YamlDataNodeGlobalRuleConfigurationSwapperEngine().swapToYamlRuleConfigurations(Collections.singletonList(ruleConfig));
-        for (Entry<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> entry : yamlConfigs.entrySet()) {
+        for (Entry<RuleConfiguration, YamlDataNodeGlobalRuleConfigurationSwapper> entry : new YamlDataNodeGlobalRuleConfigurationSwapperEngine()
+                .swapToYamlRuleConfigurations(Collections.singleton(ruleConfig)).entrySet()) {
             if ("transaction".equalsIgnoreCase(entry.getValue().getRuleTagName())) {
                 Optional<TransactionRule> transactionRule = metaDataContexts.get().getMetaData().getGlobalRuleMetaData().findSingleRule(TransactionRule.class);
                 if (!transactionRule.isPresent()) {
diff --git a/mode/type/cluster/core/src/main/java/org/apache/shardingsphere/mode/manager/cluster/ClusterModeContextManager.java b/mode/type/cluster/core/src/main/java/org/apache/shardingsphere/mode/manager/cluster/ClusterModeContextManager.java
index 0163709741c30..c3d212582ee45 100644
--- a/mode/type/cluster/core/src/main/java/org/apache/shardingsphere/mode/manager/cluster/ClusterModeContextManager.java
+++ b/mode/type/cluster/core/src/main/java/org/apache/shardingsphere/mode/manager/cluster/ClusterModeContextManager.java
@@ -94,18 +94,18 @@ public void alterSchemaMetaData(final AlterSchemaMetaDataPOJO alterSchemaMetaDat
     
     @Override
     public void registerStorageUnits(final String databaseName, final Map<String, DataSourcePoolProperties> toBeRegisteredProps) {
-        contextManager.getMetaDataContexts().getPersistService().getDataSourceUnitService().persistConfig(databaseName, toBeRegisteredProps);
+        contextManager.getMetaDataContexts().getPersistService().getDataSourceUnitService().persistConfigurations(databaseName, toBeRegisteredProps);
     }
     
     @Override
     public void alterStorageUnits(final String databaseName, final Map<String, DataSourcePoolProperties> toBeUpdatedProps) {
         DatabaseBasedPersistService<Map<String, DataSourcePoolProperties>> dataSourceService = contextManager.getMetaDataContexts().getPersistService().getDataSourceUnitService();
-        contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService().switchActiveVersion(dataSourceService.persistConfig(databaseName, toBeUpdatedProps));
+        contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService().switchActiveVersion(dataSourceService.persistConfigurations(databaseName, toBeUpdatedProps));
     }
     
     @Override
     public void unregisterStorageUnits(final String databaseName, final Collection<String> toBeDroppedStorageUnitNames) {
-        contextManager.getMetaDataContexts().getPersistService().getDataSourceUnitService().deleteConfig(databaseName,
+        contextManager.getMetaDataContexts().getPersistService().getDataSourceUnitService().deleteConfigurations(databaseName,
                 getToBeDroppedDataSourcePoolProperties(contextManager.getMetaDataContexts().getPersistService().getDataSourceUnitService().load(databaseName), toBeDroppedStorageUnitNames));
     }
     
@@ -123,13 +123,13 @@ private Map<String, DataSourcePoolProperties> getToBeDroppedDataSourcePoolProper
     public void alterSingleRuleConfiguration(final String databaseName, final Collection<RuleConfiguration> ruleConfigs) {
         ruleConfigs.removeIf(each -> !each.getClass().isAssignableFrom(SingleRuleConfiguration.class));
         contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService()
-                .switchActiveVersion(contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService().persistConfig(databaseName, ruleConfigs));
+                .switchActiveVersion(contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService().persistConfigurations(databaseName, ruleConfigs));
     }
     
     @Override
     public Collection<MetaDataVersion> alterRuleConfiguration(final String databaseName, final RuleConfiguration toBeAlteredRuleConfig) {
         if (null != toBeAlteredRuleConfig) {
-            return contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService().persistConfig(databaseName, Collections.singleton(toBeAlteredRuleConfig));
+            return contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService().persistConfigurations(databaseName, Collections.singleton(toBeAlteredRuleConfig));
         }
         return Collections.emptyList();
     }
@@ -137,7 +137,7 @@ public Collection<MetaDataVersion> alterRuleConfiguration(final String databaseN
     @Override
     public void removeRuleConfigurationItem(final String databaseName, final RuleConfiguration toBeRemovedRuleConfig) {
         if (null != toBeRemovedRuleConfig) {
-            contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService().deleteConfig(databaseName, Collections.singleton(toBeRemovedRuleConfig));
+            contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService().deleteConfigurations(databaseName, Collections.singleton(toBeRemovedRuleConfig));
         }
     }
     
diff --git a/mode/type/standalone/core/src/main/java/org/apache/shardingsphere/mode/manager/standalone/StandaloneModeContextManager.java b/mode/type/standalone/core/src/main/java/org/apache/shardingsphere/mode/manager/standalone/StandaloneModeContextManager.java
index 71dd0d792cf8a..7748699c0d5c2 100644
--- a/mode/type/standalone/core/src/main/java/org/apache/shardingsphere/mode/manager/standalone/StandaloneModeContextManager.java
+++ b/mode/type/standalone/core/src/main/java/org/apache/shardingsphere/mode/manager/standalone/StandaloneModeContextManager.java
@@ -220,7 +220,7 @@ public void registerStorageUnits(final String databaseName, final Map<String, Da
                 .forEach((schemaName, schema) -> contextManager.getMetaDataContexts().getPersistService().getDatabaseMetaDataService()
                         .persistByAlterConfiguration(contextManager.getMetaDataContexts().getMetaData().getDatabase(databaseName).getName(), schemaName, schema));
         DatabaseBasedPersistService<Map<String, DataSourcePoolProperties>> dataSourceService = contextManager.getMetaDataContexts().getPersistService().getDataSourceUnitService();
-        contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService().switchActiveVersion(dataSourceService.persistConfig(databaseName, toBeRegisteredProps));
+        contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService().switchActiveVersion(dataSourceService.persistConfigurations(databaseName, toBeRegisteredProps));
         clearServiceCache();
     }
     
@@ -232,7 +232,7 @@ public void alterStorageUnits(final String databaseName, final Map<String, DataS
         contextManager.getMetaDataContexts().getMetaData().getGlobalRuleMetaData().getRules()
                 .forEach(each -> ((GlobalRule) each).refresh(contextManager.getMetaDataContexts().getMetaData().getDatabases(), GlobalRuleChangedType.DATABASE_CHANGED));
         DatabaseBasedPersistService<Map<String, DataSourcePoolProperties>> dataSourceService = contextManager.getMetaDataContexts().getPersistService().getDataSourceUnitService();
-        contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService().switchActiveVersion(dataSourceService.persistConfig(databaseName, toBeUpdatedProps));
+        contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService().switchActiveVersion(dataSourceService.persistConfigurations(databaseName, toBeUpdatedProps));
         switchingResource.closeStaleDataSources();
         clearServiceCache();
     }
@@ -256,7 +256,7 @@ public void unregisterStorageUnits(final String databaseName, final Collection<S
     public void alterSingleRuleConfiguration(final String databaseName, final Collection<RuleConfiguration> ruleConfigs) {
         ruleConfigs.removeIf(each -> !each.getClass().isAssignableFrom(SingleRuleConfiguration.class));
         Collection<MetaDataVersion> metaDataVersions = contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService()
-                .persistConfig(contextManager.getMetaDataContexts().getMetaData().getDatabase(databaseName).getName(), ruleConfigs);
+                .persistConfigurations(contextManager.getMetaDataContexts().getMetaData().getDatabase(databaseName).getName(), ruleConfigs);
         contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService().switchActiveVersion(metaDataVersions);
         contextManager.getConfigurationContextManager().alterRuleConfiguration(databaseName, ruleConfigs.iterator().next());
         clearServiceCache();
@@ -266,7 +266,7 @@ public void alterSingleRuleConfiguration(final String databaseName, final Collec
     public Collection<MetaDataVersion> alterRuleConfiguration(final String databaseName, final RuleConfiguration toBeAlteredRuleConfig) {
         if (null != toBeAlteredRuleConfig) {
             Collection<MetaDataVersion> metaDataVersions = contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService()
-                    .persistConfig(contextManager.getMetaDataContexts().getMetaData().getDatabase(databaseName).getName(), Collections.singletonList(toBeAlteredRuleConfig));
+                    .persistConfigurations(contextManager.getMetaDataContexts().getMetaData().getDatabase(databaseName).getName(), Collections.singletonList(toBeAlteredRuleConfig));
             contextManager.getMetaDataContexts().getPersistService().getMetaDataVersionPersistService().switchActiveVersion(metaDataVersions);
             sendDatabaseRuleChangedEvent(databaseName, metaDataVersions);
             clearServiceCache();
@@ -291,7 +291,7 @@ private void sendDatabaseRuleChangedEvent(final String databaseName, final MetaD
     public void removeRuleConfigurationItem(final String databaseName, final RuleConfiguration toBeRemovedRuleConfig) {
         if (null != toBeRemovedRuleConfig) {
             sendDatabaseRuleChangedEvent(databaseName,
-                    contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService().deleteConfig(databaseName, Collections.singleton(toBeRemovedRuleConfig)));
+                    contextManager.getMetaDataContexts().getPersistService().getDatabaseRulePersistService().deleteConfigurations(databaseName, Collections.singleton(toBeRemovedRuleConfig)));
             clearServiceCache();
         }
     }