org.apache.calcite.sql.SqlBinaryStringLiteral Maven / Gradle / Ivy
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/*
* 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.calcite.sql;
import org.apache.calcite.sql.parser.SqlParserPos;
import org.apache.calcite.sql.type.SqlTypeName;
import org.apache.calcite.util.BitString;
import org.apache.calcite.util.Util;
import java.util.List;
/**
* A binary (or hexadecimal) string literal.
*
* The {@link #value} field is a {@link BitString} and {@link #typeName} is
* {@link SqlTypeName#BINARY}.
*/
public class SqlBinaryStringLiteral extends SqlAbstractStringLiteral {
//~ Constructors -----------------------------------------------------------
protected SqlBinaryStringLiteral(
BitString val,
SqlParserPos pos) {
super(val, SqlTypeName.BINARY, pos);
}
//~ Methods ----------------------------------------------------------------
/**
* @return the underlying BitString
*/
public BitString getBitString() {
return (BitString) value;
}
@Override public SqlBinaryStringLiteral clone(SqlParserPos pos) {
return new SqlBinaryStringLiteral((BitString) value, pos);
}
public void unparse(
SqlWriter writer,
int leftPrec,
int rightPrec) {
assert value instanceof BitString;
writer.literal("X'" + ((BitString) value).toHexString() + "'");
}
protected SqlAbstractStringLiteral concat1(List literals) {
return new SqlBinaryStringLiteral(
BitString.concat(
Util.transform(literals,
literal -> ((SqlBinaryStringLiteral) literal).getBitString())),
literals.get(0).getParserPosition());
}
}
// End SqlBinaryStringLiteral.java