/*
 * Copyright 2016-2018 shardingsphere.io.
 * <p>
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * </p>
 */

package io.shardingsphere.core.parsing.antlr.extractor.statement.handler;

import io.shardingsphere.core.parsing.antlr.extractor.statement.util.ASTUtils;
import io.shardingsphere.core.parsing.parser.sql.SQLStatement;
import org.antlr.v4.runtime.ParserRuleContext;
import org.antlr.v4.runtime.tree.ParseTree;

/**
 * Multiple table names extract handler.
 * 
 * @author duhongjun
 */
public final class TableNamesExtractHandler extends TableNameExtractHandler {
    
    @Override
    public void extract(final ParserRuleContext ancestorNode, final SQLStatement statement) {
        for (ParseTree each : ASTUtils.getAllDescendantNodes(ancestorNode, RuleName.TABLE_NAME)) {
            super.extract((ParserRuleContext) each, statement);
        }
    }
}

@@ -688,16 +688,108 @@
 ndler;%0A%0A
+import org.antlr.v4.runtime.ParserRuleContext;%0Aimport org.antlr.v4.runtime.tree.ParseTree;%0A%0A
 import i
@@ -848,21 +848,36 @@
 ent.
-util.ASTUtils
+handler.result.ExtractResult
 ;%0Aim
@@ -916,122 +916,333 @@
 ing.
-parser.sql.SQLStatement;%0Aimport org.antlr.v4.runtime.ParserRuleContext;%0Aimport org.antlr.v4.runtime.tree.ParseTree
+antlr.extractor.statement.handler.result.SQLTokenExtractResult;%0Aimport io.shardingsphere.core.parsing.antlr.extractor.statement.util.ASTUtils;%0Aimport io.shardingsphere.core.parsing.lexer.token.Symbol;%0Aimport io.shardingsphere.core.parsing.parser.sql.SQLStatement;%0Aimport io.shardingsphere.core.parsing.parser.token.TableToken
 ;%0A%0A/
@@ -1390,16 +1390,46 @@
 Handler 
+implements ASTExtractHandler1 
 %7B%0A    %0A 
@@ -1714,10 +1714,620 @@
 %7D%0A    %7D%0A
+    %0A    @Override%0A    public ExtractResult extract(ParserRuleContext ancestorNode) %7B%0A        SQLTokenExtractResult extractResult = new SQLTokenExtractResult();%0A        for (ParserRuleContext each : ASTUtils.getAllDescendantNodes(ancestorNode, RuleName.TABLE_NAME)) %7B%0A            String tableText = each.getText();%0A            int dotPosition = tableText.contains(Symbol.DOT.getLiterals()) ? tableText.lastIndexOf(Symbol.DOT.getLiterals()) : 0;%0A            extractResult.getSqlTokens().add(new TableToken(each.getStart().getStartIndex(), dotPosition, tableText));%0A        %7D%0A        return extractResult;%0A    %7D%0A
 %7D%0A

implement ASTExtractHandler1