for checkstyle

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/parsing/parser/context/OrderItem.java

@@ -30,6 +30,7 @@ import lombok.ToString;
  * @author zhangliang
  */
 @Getter
+@Setter
 @EqualsAndHashCode
 @ToString
 public final class OrderItem {
@@ -40,10 +41,8 @@ public final class OrderItem {
     
     private final OrderType type;
     
-    @Setter
     private int index = -1;
     
-    @Setter
     private Optional<String> alias;
     
     public OrderItem(final String name, final OrderType type, final Optional<String> alias) {

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/parsing/parser/dialect/mysql/MySQLSelectParser.java

@@ -35,7 +35,12 @@ import com.dangdang.ddframe.rdb.sharding.parsing.parser.token.RowCountToken;
 import java.util.Collection;
 import java.util.Collections;
 
-public class MySQLSelectParser extends AbstractSelectParser {
+/**
+ * MySQL Select语句解析器.
+ *
+ * @author zhangliang
+ */
+public final class MySQLSelectParser extends AbstractSelectParser {
     
     public MySQLSelectParser(final AbstractSQLParser sqlParser) {
         super(sqlParser);
@@ -47,13 +52,13 @@ public class MySQLSelectParser extends AbstractSelectParser {
     }
     
     @Override
-    protected final void parseBeforeSelectList() {
+    protected void parseBeforeSelectList() {
         getSqlParser().skipAll(MySQLKeyword.HIGH_PRIORITY, DefaultKeyword.STRAIGHT_JOIN, MySQLKeyword.SQL_SMALL_RESULT, MySQLKeyword.SQL_BIG_RESULT, MySQLKeyword.SQL_BUFFER_RESULT, 
                 MySQLKeyword.SQL_CACHE, MySQLKeyword.SQL_NO_CACHE, MySQLKeyword.SQL_CALC_FOUND_ROWS);
     }
     
     @Override
-    protected final void customizedSelect() {
+    protected void customizedSelect() {
         parseLimit();
         if (getSqlParser().equalAny(DefaultKeyword.PROCEDURE)) {
             throw new SQLParsingUnsupportedException(getSqlParser().getLexer().getCurrentToken().getType());

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/parsing/parser/dialect/oracle/OracleSelectParser.java

@@ -29,7 +29,12 @@ import com.dangdang.ddframe.rdb.sharding.parsing.parser.statement.dql.select.Abs
 import java.util.Collection;
 import java.util.Collections;
 
-public class OracleSelectParser extends AbstractSelectParser {
+/**
+ * Oracle Select语句解析器.
+ *
+ * @author zhangliang
+ */
+public final class OracleSelectParser extends AbstractSelectParser {
     
     public OracleSelectParser(final AbstractSQLParser sqlParser) {
         super(sqlParser);
@@ -41,7 +46,7 @@ public class OracleSelectParser extends AbstractSelectParser {
     }
     
     @Override
-    protected final void customizedBetweenWhereAndGroupBy() {
+    protected void customizedBetweenWhereAndGroupBy() {
         skipHierarchicalQueryClause();
     }
     
@@ -70,7 +75,7 @@ public class OracleSelectParser extends AbstractSelectParser {
     }
     
     @Override
-    protected final void customizedBetweenGroupByAndOrderBy() {
+    protected void customizedBetweenGroupByAndOrderBy() {
         skipModelClause();
     }
     

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/parsing/parser/dialect/postgresql/PostgreSQLSelectParser.java

@@ -32,14 +32,19 @@ import com.dangdang.ddframe.rdb.sharding.parsing.parser.token.RowCountToken;
 import com.dangdang.ddframe.rdb.sharding.util.NumberUtil;
 import com.google.common.base.Optional;
 
-public class PostgreSQLSelectParser extends AbstractSelectParser {
+/**
+ * PostgreSQL Select语句解析器.
+ *
+ * @author zhangliang
+ */
+public final class PostgreSQLSelectParser extends AbstractSelectParser {
     
     public PostgreSQLSelectParser(final AbstractSQLParser sqlParser) {
         super(sqlParser);
     }
     
     @Override
-    protected final void customizedSelect() {
+    protected void customizedSelect() {
         if (getSqlParser().equalAny(PostgreSQLKeyword.WINDOW)) {
             throw new SQLParsingUnsupportedException(PostgreSQLKeyword.WINDOW);
         }
@@ -127,8 +132,4 @@ public class PostgreSQLSelectParser extends AbstractSelectParser {
         }
         getSelectStatement().setLimit(limit);
     }
-    
-    protected boolean hasDistinctOn() {
-        return true;
-    }
 }

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/parsing/parser/dialect/sqlserver/SQLServerSelectParser.java

@@ -35,7 +35,12 @@ import com.dangdang.ddframe.rdb.sharding.parsing.parser.statement.dql.select.Abs
 import com.dangdang.ddframe.rdb.sharding.parsing.parser.token.RowCountToken;
 import com.google.common.base.Optional;
 
-public class SQLServerSelectParser extends AbstractSelectParser {
+/**
+ * SQLServer Select语句解析器.
+ *
+ * @author zhangliang
+ */
+public final class SQLServerSelectParser extends AbstractSelectParser {
     
     public SQLServerSelectParser(final AbstractSQLParser sqlParser) {
         super(sqlParser);
@@ -112,7 +117,7 @@ public class SQLServerSelectParser extends AbstractSelectParser {
     }
     
     @Override
-    protected final void customizedSelect() {
+    protected void customizedSelect() {
         if (getSqlParser().equalAny(DefaultKeyword.FOR)) {
             parseFor();
         }

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/parsing/parser/statement/ddl/DDLStatement.java

@@ -31,7 +31,7 @@ import lombok.ToString;
 @Getter
 @Setter
 @ToString(callSuper = true)
-public class DDLStatement extends AbstractSQLStatement {
+public final class DDLStatement extends AbstractSQLStatement {
     
     public DDLStatement() {
         super(SQLType.DDL);

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/parsing/parser/statement/dql/select/AbstractSelectParser.java

@@ -54,6 +54,11 @@ import java.util.Collections;
 import java.util.LinkedList;
 import java.util.List;
 
+/**
+ * Select语句解析器.
+ * 
+ * @author zhangliang 
+ */
 @Getter(AccessLevel.PROTECTED)
 public abstract class AbstractSelectParser implements SQLStatementParser {
     

sharding-jdbc-core/src/main/java/com/dangdang/ddframe/rdb/sharding/parsing/parser/token/SQLToken.java

@@ -24,5 +24,10 @@ package com.dangdang.ddframe.rdb.sharding.parsing.parser.token;
  */
 public interface SQLToken {
     
+    /**
+     * 获取开始位置.
+     * 
+     * @return 开始位置
+     */
     int getBeginPosition();
 }