com.anaptecs.spring.base.BidirectB Maven / Gradle / Ivy
/*
* anaptecs GmbH, Ricarda-Huch-Str. 71, 72760 Reutlingen, Germany
*
* Copyright 2004 - 2019. All rights reserved.
*/
package com.anaptecs.spring.base;
import java.util.Objects;
public class BidirectB {
/**
* Constant for the name of attribute "a".
*/
public static final String A = "a";
/**
* the A
*/
private BidirectA a;
/**
* Attribute is required for correct handling of bidirectional associations in case of deserialization.
*/
private transient boolean aBackReferenceInitialized;
/**
* Default constructor is only intended to be used for deserialization by tools like Jackson for JSON. For "normal"
* object creation builder should be used instead.
*/
protected BidirectB( ) {
// Bidirectional back reference is not yet set up correctly
aBackReferenceInitialized = false;
}
/**
* Initialize object using the passed builder.
*
* @param pBuilder Builder that should be used to initialize this object. The parameter must not be null.
*/
protected BidirectB( Builder pBuilder ) {
// Read attribute values from builder.
a = pBuilder.a;
if (a != null) {
// As association is bidirectional we also have to set it in the other direction.
a.addToTransientBs((BidirectB) this);
}
// Bidirectional back reference is set up correctly as a builder is used.
aBackReferenceInitialized = true;
}
/**
* Method returns a new builder.
*
* @return {@link Builder} New builder that can be used to create new BidirectB objects.
*/
public static Builder builder( ) {
return new Builder();
}
/**
* Convenience method to create new instance of class BidirectB.
*
*
* @param pA Value to which {@link #a} should be set.
*
* @return {@link BidirectB}
*/
public static BidirectB of( BidirectA pA ) {
BidirectB.Builder lBuilder = BidirectB.builder();
lBuilder.setA(pA);
return lBuilder.build();
}
/**
* Class implements builder to create a new instance of class BidirectB.
*/
public static class Builder {
/**
* the A
*/
private BidirectA a;
/**
* Use {@link BidirectB#builder()} instead of private constructor to create new builder.
*/
protected Builder( ) {
}
/**
* Use {@link BidirectB#builder(BidirectB)} instead of private constructor to create new builder.
*/
protected Builder( BidirectB pObject ) {
if (pObject != null) {
// Read attribute values from passed object.
this.setA(pObject.a);
}
}
/**
* Method sets association {@link #a}.
*
* @param pA Value to which {@link #a} should be set.
* @return {@link Builder} Instance of this builder to support chaining setters. Method never returns null.
*/
public Builder setA( BidirectA pA ) {
a = pA;
return this;
}
/**
* Method creates a new instance of class BidirectB. The object will be initialized with the values of the builder.
*
* @return BidirectB Created object. The method never returns null.
*/
public BidirectB build( ) {
return new BidirectB(this);
}
}
/**
* Method returns association {@link #a}.
* the A
*
* @return {@link BidirectA} Value to which {@link #a} is set.
*/
public BidirectA getA( ) {
// Due to restrictions in JSON serialization / deserialization bi-directional associations need a special handling
// after an object was deserialized.
if (aBackReferenceInitialized == false) {
aBackReferenceInitialized = true;
a.addToTransientBs((BidirectB) this);
}
return a;
}
/**
* Method sets association {@link #a}.
* the A
*
* @param pA Value to which {@link #a} should be set.
*/
public void setA( BidirectA pA ) {
// Release already referenced object before setting a new association.
if (a != null) {
a.removeFromTransientBs((BidirectB) this);
}
a = pA;
// The association is set in both directions because within the UML model it is defined to be bidirectional.
// In case that one side will be removed from the association the other side will also be removed.
if (pA != null && pA.getTransientBs().contains(this) == false) {
pA.addToTransientBs((BidirectB) this);
}
}
/**
* Method unsets {@link #a}.
*/
public final void unsetA( ) {
// The association is set in both directions because within the UML model it is defined to be bidirectional.
// In case that one side will be removed from the association the other side will also be removed.
BidirectA lBidirectA = a;
a = null;
if (lBidirectA != null && lBidirectA.getTransientBs().contains(this) == true) {
lBidirectA.removeFromTransientBs((BidirectB) this);
}
}
@Override
public int hashCode( ) {
final int lPrime = 31;
int lResult = 1;
lResult = lPrime * lResult + Objects.hashCode(a);
return lResult;
}
@Override
public boolean equals( Object pObject ) {
boolean lEquals;
if (this == pObject) {
lEquals = true;
}
else if (pObject == null) {
lEquals = false;
}
else if (this.getClass() != pObject.getClass()) {
lEquals = false;
}
else {
BidirectB lOther = (BidirectB) pObject;
lEquals = Objects.equals(a, lOther.a);
}
return lEquals;
}
/**
* Method returns a StringBuilder that can be used to create a String representation of this object. The returned
* StringBuilder also takes care about attributes of super classes.
*
* @return {@link StringBuilder} StringBuilder representing this object. The method never returns null.
*/
public StringBuilder toStringBuilder( String pIndent ) {
StringBuilder lBuilder = new StringBuilder();
lBuilder.append(pIndent);
lBuilder.append(this.getClass().getName());
lBuilder.append(System.lineSeparator());
lBuilder.append(pIndent);
lBuilder.append("a: ");
if (a != null) {
lBuilder.append(System.lineSeparator());
lBuilder.append(a.toStringBuilder(pIndent + " "));
}
else {
lBuilder.append(" null");
lBuilder.append(System.lineSeparator());
}
return lBuilder;
}
/**
* Method creates a new String with the values of all attributes of this class. All references to other objects will
* be ignored.
*
* @return {@link String} String representation of this object. The method never returns null.
*/
@Override
public String toString( ) {
return this.toStringBuilder("").toString();
}
/**
* Method creates a new builder and initializes it with the data of this object.
*
* @return {@link Builder} New builder that can be used to create new BidirectB objects. The method never returns
* null.
*/
public Builder toBuilder( ) {
return new Builder(this);
}
}