com.blazebit.persistence.impl.SimplePathReference 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.impl;
import com.blazebit.persistence.From;
import com.blazebit.persistence.Path;
import com.blazebit.persistence.parser.expression.BaseNode;
import com.blazebit.persistence.parser.expression.PathReference;
import javax.persistence.metamodel.Type;
/**
* @author Christian Beikov
* @since 1.2.0
*/
public class SimplePathReference implements PathReference, Path {
private final JoinNode baseNode;
private final String field;
private final Type type;
public SimplePathReference(JoinNode baseNode, String field, Type type) {
this.baseNode = baseNode;
this.field = field;
this.type = type;
}
@Override
public BaseNode getBaseNode() {
return baseNode;
}
@Override
public String getField() {
return field;
}
@Override
public Type getType() {
return type;
}
@Override
public From getFrom() {
return baseNode;
}
@Override
public String getPath() {
StringBuilder sb = new StringBuilder();
baseNode.appendDeReference(sb, field, true, false, false);
return sb.toString();
}
@Override
public Class getJavaType() {
return type.getJavaType();
}
@Override
public String toString() {
return getPath();
}
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((baseNode == null) ? 0 : baseNode.hashCode());
result = prime * result + ((field == null) ? 0 : field.hashCode());
return result;
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (obj == null) {
return false;
}
if (!(obj instanceof PathReference)) {
return false;
}
PathReference other = (PathReference) obj;
if (baseNode == null) {
if (other.getBaseNode() != null) {
return false;
}
} else if (!baseNode.equals(other.getBaseNode())) {
return false;
}
if (field == null) {
if (other.getField() != null) {
return false;
}
} else if (!field.equals(other.getField())) {
return false;
}
return true;
}
}