com.blazebit.persistence.parser.expression.ParameterExpression Maven / Gradle / Ivy
/*
* Copyright 2014 - 2023 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;
/**
*
* @author Christian Beikov
* @author Moritz Becker
* @since 1.0.0
*/
public class ParameterExpression extends AbstractExpression {
private String name;
private final Object value;
private boolean collectionValued;
public ParameterExpression(String name) {
this(name, null);
}
public ParameterExpression(String name, Object value) {
this(name, value, false);
}
public ParameterExpression(String name, Object value, boolean collectionValued) {
this.name = name;
this.value = value;
this.collectionValued = collectionValued;
}
@Override
public ParameterExpression copy(ExpressionCopyContext copyContext) {
return new ParameterExpression(copyContext.getNewParameterName(name), value, collectionValued);
}
@Override
public void accept(Visitor visitor) {
visitor.visit(this);
}
@Override
public T accept(ResultVisitor visitor) {
return visitor.visit(this);
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public Object getValue() {
return value;
}
public boolean isCollectionValued() {
return collectionValued;
}
public void setCollectionValued(boolean collectionValued) {
this.collectionValued = collectionValued;
}
@Override
public String toString() {
if (!collectionValued && value instanceof Enum) {
Enum value = (Enum) this.value;
return value.getDeclaringClass().getName() + "." + value.name();
} else {
if (Character.isDigit(name.charAt(0))) {
return "?" + name;
} else {
return ":" + name;
}
}
}
@Override
public boolean equals(Object o) {
if (this == o) {
return true;
}
if (!(o instanceof ParameterExpression)) {
return false;
}
ParameterExpression that = (ParameterExpression) o;
if (collectionValued != that.collectionValued) {
return false;
}
if (name != null ? !name.equals(that.name) : that.name != null) {
return false;
}
return value != null ? value.equals(that.value) : that.value == null;
}
@Override
public int hashCode() {
int result = name != null ? name.hashCode() : 0;
result = 31 * result + (value != null ? value.hashCode() : 0);
result = 31 * result + (collectionValued ? 1 : 0);
return result;
}
}