AMashenkov commented on a change in pull request #484: URL: https://github.com/apache/ignite-3/pull/484#discussion_r762107400
########## File path: modules/calcite/src/main/java/org/apache/ignite/internal/processors/query/calcite/sql/IgniteSqlCreateIndex.java ########## @@ -0,0 +1,118 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to you 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. + */ + +package org.apache.ignite.internal.processors.query.calcite.sql; + +import java.util.List; +import java.util.Objects; +import org.apache.calcite.sql.SqlCall; +import org.apache.calcite.sql.SqlCreate; +import org.apache.calcite.sql.SqlIdentifier; +import org.apache.calcite.sql.SqlKind; +import org.apache.calcite.sql.SqlNode; +import org.apache.calcite.sql.SqlNodeList; +import org.apache.calcite.sql.SqlOperator; +import org.apache.calcite.sql.SqlSpecialOperator; +import org.apache.calcite.sql.SqlWriter; +import org.apache.calcite.sql.parser.SqlParserPos; +import org.apache.calcite.util.ImmutableNullableList; + +/** + * Parse tree for {@code CREATE INDEX} statement. + */ +public class IgniteSqlCreateIndex extends SqlCreate { + /** Idx name. */ + private final SqlIdentifier idxName; + + /** Table name. */ + private final SqlIdentifier tblName; + + /** Columns involved. */ + private final SqlNodeList columnList; + + /** SqlOperator type. */ + private static final SqlOperator OPERATOR = + new SqlSpecialOperator("CREATE INDEX", SqlKind.CREATE_INDEX); + + /** Creates a SqlCreateIndex. */ + public IgniteSqlCreateIndex(SqlParserPos pos, boolean ifNotExists, SqlIdentifier idxName, SqlIdentifier tblName, + SqlNodeList columnList) { + super(OPERATOR, pos, false, ifNotExists); + this.idxName = Objects.requireNonNull(idxName, "index name"); + this.tblName = Objects.requireNonNull(tblName, "table name"); + this.columnList = columnList; + } + + /** {@inheritDoc} */ + @Override public List<SqlNode> getOperandList() { + return ImmutableNullableList.of(idxName, tblName, columnList); + } + + /** {@inheritDoc} */ + @Override public void unparse(SqlWriter writer, int leftPrec, int rightPrec) { + writer.keyword("CREATE"); + + writer.keyword("INDEX"); + + if (ifNotExists) { + writer.keyword("IF NOT EXISTS"); + } + + idxName.unparse(writer, 0, 0); + + writer.keyword("ON"); + + tblName.unparse(writer, 0, 0); + + SqlWriter.Frame frame = writer.startList("(", ")"); + + for (SqlNode c : columnList) { + writer.sep(","); + + boolean desc = false; + + if (c.getKind() == SqlKind.DESCENDING) { + c = ((SqlCall) c).getOperandList().get(0); + desc = true; + } + + c.unparse(writer, 0, 0); + + if (desc) { + writer.keyword("DESC"); + } + } + + writer.endList(frame); + } + + public SqlIdentifier indexName() { + return idxName; + } + + public SqlIdentifier tableName() { + return tblName; + } + + public SqlNodeList columnList() { + return columnList; + } + + public boolean ifNotExists() { + return ifNotExists; Review comment: Javadoc -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
