Many resources are needed to download a project. Please understand that we have to compensate our server costs. Thank you in advance. Project price only 1 $
You can buy this project and download/modify it how often you want.
/*
* 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 com.hazelcast.org.apache.calcite.sql.ddl;
import com.hazelcast.org.apache.calcite.sql.SqlCreate;
import com.hazelcast.org.apache.calcite.sql.SqlIdentifier;
import com.hazelcast.org.apache.calcite.sql.SqlKind;
import com.hazelcast.org.apache.calcite.sql.SqlNode;
import com.hazelcast.org.apache.calcite.sql.SqlNodeList;
import com.hazelcast.org.apache.calcite.sql.SqlOperator;
import com.hazelcast.org.apache.calcite.sql.SqlSpecialOperator;
import com.hazelcast.org.apache.calcite.sql.SqlWriter;
import com.hazelcast.org.apache.calcite.sql.parser.SqlParserPos;
import com.hazelcast.org.apache.calcite.util.ImmutableNullableList;
import com.hazelcast.org.apache.calcite.util.Pair;
import com.hazelcast.com.google.common.base.Preconditions;
import com.hazelcast.com.google.common.collect.ImmutableList;
import com.hazelcast.org.checkerframework.checker.nullness.qual.Nullable;
import java.util.AbstractList;
import java.util.List;
import java.util.Objects;
import static com.hazelcast.org.apache.calcite.linq4j.Nullness.castNonNull;
/**
* Parse tree for {@code CREATE FOREIGN SCHEMA} statement.
*/
public class SqlCreateForeignSchema extends SqlCreate {
public final SqlIdentifier name;
public final @Nullable SqlNode type;
public final @Nullable SqlNode library;
private final @Nullable SqlNodeList optionList;
private static final SqlOperator OPERATOR =
new SqlSpecialOperator("CREATE FOREIGN SCHEMA",
SqlKind.CREATE_FOREIGN_SCHEMA);
/** Creates a SqlCreateForeignSchema. */
SqlCreateForeignSchema(SqlParserPos pos, boolean replace, boolean ifNotExists,
SqlIdentifier name, @Nullable SqlNode type, @Nullable SqlNode library,
@Nullable SqlNodeList optionList) {
super(OPERATOR, pos, replace, ifNotExists);
this.name = Objects.requireNonNull(name, "name");
this.type = type;
this.library = library;
Preconditions.checkArgument((type == null) != (library == null),
"of type and library, exactly one must be specified");
this.optionList = optionList; // may be null
}
@SuppressWarnings("nullness")
@Override public List getOperandList() {
return ImmutableNullableList.of(name, type, library, optionList);
}
@Override public void unparse(SqlWriter writer, int leftPrec, int rightPrec) {
if (getReplace()) {
writer.keyword("CREATE OR REPLACE");
} else {
writer.keyword("CREATE");
}
writer.keyword("FOREIGN SCHEMA");
if (ifNotExists) {
writer.keyword("IF NOT EXISTS");
}
name.unparse(writer, leftPrec, rightPrec);
if (library != null) {
writer.keyword("LIBRARY");
library.unparse(writer, 0, 0);
}
if (type != null) {
writer.keyword("TYPE");
type.unparse(writer, 0, 0);
}
if (optionList != null) {
writer.keyword("OPTIONS");
SqlWriter.Frame frame = writer.startList("(", ")");
int i = 0;
for (Pair c : options()) {
if (i++ > 0) {
writer.sep(",");
}
c.left.unparse(writer, 0, 0);
c.right.unparse(writer, 0, 0);
}
writer.endList(frame);
}
}
/** Returns options as a list of (name, value) pairs. */
public List> options() {
return options(optionList);
}
private static List> options(
final @Nullable SqlNodeList optionList) {
if (optionList == null) {
return ImmutableList.of();
}
return new AbstractList>() {
@Override public Pair get(int index) {
return Pair.of((SqlIdentifier) castNonNull(optionList.get(index * 2)),
castNonNull(optionList.get(index * 2 + 1)));
}
@Override public int size() {
return optionList.size() / 2;
}
};
}
}