com.datastax.oss.driver.internal.querybuilder.update.DefaultAssignment Maven / Gradle / Ivy
/*
* Copyright DataStax, Inc.
*
* 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.
*/
package com.datastax.oss.driver.internal.querybuilder.update;
import com.datastax.oss.driver.api.querybuilder.term.Term;
import com.datastax.oss.driver.api.querybuilder.update.Assignment;
import com.datastax.oss.driver.internal.querybuilder.lhs.LeftOperand;
import edu.umd.cs.findbugs.annotations.NonNull;
import edu.umd.cs.findbugs.annotations.Nullable;
import net.jcip.annotations.Immutable;
@Immutable
public class DefaultAssignment implements Assignment {
private final LeftOperand leftOperand;
private final String operator;
private final Term rightOperand;
public DefaultAssignment(
@NonNull LeftOperand leftOperand, @NonNull String operator, @Nullable Term rightOperand) {
this.leftOperand = leftOperand;
this.operator = operator;
this.rightOperand = rightOperand;
}
@Override
public void appendTo(@NonNull StringBuilder builder) {
leftOperand.appendTo(builder);
builder.append(operator);
if (rightOperand != null) {
rightOperand.appendTo(builder);
}
}
@Override
public boolean isIdempotent() {
return rightOperand == null || rightOperand.isIdempotent();
}
@NonNull
public LeftOperand getLeftOperand() {
return leftOperand;
}
@NonNull
public String getOperator() {
return operator;
}
@Nullable
public Term getRightOperand() {
return rightOperand;
}
}