Re-include ARJDBC statement caching

Author: JesseChavez

lib/arjdbc/abstract/statement_cache.rb

@@ -24,7 +24,7 @@ def initialize(*args) # (connection, logger, config)
 
         # Only say we support the statement cache if we are using prepared statements
         # and have a max number of statements defined
-        statement_limit = self.class.type_cast_config_to_integer(config[:statement_limit])
+        statement_limit = self.class.type_cast_config_to_integer(@config[:statement_limit])
         @jdbc_statement_cache_enabled = prepared_statements && (statement_limit.nil? || statement_limit > 0)
 
         @statements = StatementPool.new(statement_limit) # AR (5.0) expects this to be stored as @statements

lib/arjdbc/mysql/adapter.rb

@@ -28,7 +28,7 @@ class Mysql2Adapter < AbstractMysqlAdapter
       include ArJdbc::Abstract::ConnectionManagement
       include ArJdbc::Abstract::DatabaseStatements
       # NOTE: do not include MySQL::DatabaseStatements
-      # include ArJdbc::Abstract::StatementCache
+      include ArJdbc::Abstract::StatementCache
       include ArJdbc::Abstract::TransactionSupport
 
       include ArJdbc::MySQL

lib/arjdbc/postgresql/adapter.rb

@@ -749,7 +749,7 @@ class PostgreSQLAdapter < AbstractAdapter
     include ArJdbc::Abstract::Core
     include ArJdbc::Abstract::ConnectionManagement
     include ArJdbc::Abstract::DatabaseStatements
-    # include ArJdbc::Abstract::StatementCache
+    include ArJdbc::Abstract::StatementCache
     include ArJdbc::Abstract::TransactionSupport
     include ArJdbc::PostgreSQL