com.hazelcast.jet.sql.impl.validate.operators.string.HazelcastReplaceFunction Maven / Gradle / Ivy
/*
* Copyright 2021 Hazelcast Inc.
*
* Licensed under the Hazelcast Community License (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://hazelcast.com/hazelcast-community-license
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.hazelcast.jet.sql.impl.validate.operators.string;
import com.hazelcast.jet.sql.impl.validate.HazelcastCallBinding;
import com.hazelcast.jet.sql.impl.validate.operand.OperandCheckerProgram;
import com.hazelcast.jet.sql.impl.validate.operand.TypedOperandChecker;
import com.hazelcast.jet.sql.impl.validate.operators.typeinference.ReplaceUnknownOperandTypeInference;
import com.hazelcast.jet.sql.impl.validate.operators.common.HazelcastFunction;
import com.hazelcast.org.apache.calcite.sql.SqlFunctionCategory;
import com.hazelcast.org.apache.calcite.sql.SqlKind;
import com.hazelcast.org.apache.calcite.sql.SqlOperandCountRange;
import com.hazelcast.org.apache.calcite.sql.type.ReturnTypes;
import com.hazelcast.org.apache.calcite.sql.type.SqlOperandCountRanges;
import com.hazelcast.org.apache.calcite.sql.type.SqlTypeName;
public class HazelcastReplaceFunction extends HazelcastFunction {
public static final HazelcastReplaceFunction INSTANCE = new HazelcastReplaceFunction();
public HazelcastReplaceFunction() {
super(
"REPLACE",
SqlKind.OTHER_FUNCTION,
ReturnTypes.ARG0_NULLABLE_VARYING,
new ReplaceUnknownOperandTypeInference(SqlTypeName.VARCHAR),
SqlFunctionCategory.STRING
);
}
@Override
public String getSignatureTemplate(int operandsCount) {
if (operandsCount != 3) {
throw new AssertionError("The number of operands must be 3");
}
return "{0}({1}, {2}, {3})";
}
@Override
public SqlOperandCountRange getOperandCountRange() {
return SqlOperandCountRanges.of(3);
}
@Override
protected boolean checkOperandTypes(HazelcastCallBinding callBinding, boolean throwOnFailure) {
return new OperandCheckerProgram(
TypedOperandChecker.VARCHAR,
TypedOperandChecker.VARCHAR,
TypedOperandChecker.VARCHAR).check(callBinding, throwOnFailure);
}
}