com.blazebit.persistence.parser.expression.SimpleCaseExpression Maven / Gradle / Ivy
/*
* Copyright 2014 - 2021 Blazebit.
*
* 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.blazebit.persistence.parser.expression;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author Moritz Becker
* @since 1.2.0
*/
public class SimpleCaseExpression extends GeneralCaseExpression {
private Expression caseOperand;
public SimpleCaseExpression(Expression caseOperand, List whenClauses, Expression defaultExpr) {
super(whenClauses, defaultExpr);
this.caseOperand = caseOperand;
}
@Override
public SimpleCaseExpression copy(ExpressionCopyContext copyContext) {
int size = whenClauses.size();
List newWhenClauses = new ArrayList(size);
for (int i = 0; i < size; i++) {
newWhenClauses.add(whenClauses.get(i).copy(copyContext));
}
if (defaultExpr == null) {
return new SimpleCaseExpression(caseOperand.copy(copyContext), newWhenClauses, null);
} else {
return new SimpleCaseExpression(caseOperand.copy(copyContext), newWhenClauses, defaultExpr.copy(copyContext));
}
}
public Expression getCaseOperand() {
return caseOperand;
}
public void setCaseOperand(Expression caseOperand) {
this.caseOperand = caseOperand;
}
@Override
public void accept(Visitor visitor) {
visitor.visit(this);
}
@Override
public T accept(ResultVisitor visitor) {
return visitor.visit(this);
}
@Override
public int hashCode() {
int hash = super.hashCode();
hash = 89 * hash + (this.caseOperand != null ? this.caseOperand.hashCode() : 0);
return hash;
}
@Override
public boolean equals(Object obj) {
if (obj == null) {
return false;
}
if (getClass() != obj.getClass()) {
return false;
}
final SimpleCaseExpression other = (SimpleCaseExpression) obj;
if (!super.equals(other)) {
return false;
} else if (this.caseOperand != other.caseOperand && (this.caseOperand == null || !this.caseOperand.equals(other.caseOperand))) {
return false;
}
return true;
}
}