com.anaptecs.spring.base.BidirectA 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.Collection;
import java.util.Collections;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Objects;
import java.util.Set;
public class BidirectA {
/**
* Constant for the name of attribute "transientBs".
*/
public static final String TRANSIENTBS = "transientBs";
/**
* Constant for the name of attribute "parent".
*/
public static final String PARENT = "parent";
/**
* Constant for the name of attribute "transientChild".
*/
public static final String TRANSIENTCHILD = "transientChild";
private transient Set transientBs;
private BidirectA parent;
/**
* Attribute is required for correct handling of bidirectional associations in case of deserialization.
*/
private transient boolean parentBackReferenceInitialized;
private transient BidirectA transientChild;
/**
* 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 BidirectA( ) {
transientBs = new HashSet();
// Bidirectional back reference is not yet set up correctly
parentBackReferenceInitialized = 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 BidirectA( Builder pBuilder ) {
// Read attribute values from builder.
transientBs = new HashSet();
parent = pBuilder.parent;
if (parent != null) {
// As association is bidirectional we also have to set it in the other direction.
parent.setTransientChild((BidirectA) this);
}
// Bidirectional back reference is set up correctly as a builder is used.
parentBackReferenceInitialized = true;
}
/**
* Method returns a new builder.
*
* @return {@link Builder} New builder that can be used to create new BidirectA objects.
*/
public static Builder builder( ) {
return new Builder();
}
/**
* Convenience method to create new instance of class BidirectA.
*
*
* @param pParent Value to which {@link #parent} should be set.
*
* @return {@link BidirectA}
*/
public static BidirectA of( BidirectA pParent ) {
BidirectA.Builder lBuilder = BidirectA.builder();
lBuilder.setParent(pParent);
return lBuilder.build();
}
/**
* Class implements builder to create a new instance of class BidirectA.
*/
public static class Builder {
private BidirectA parent;
/**
* Use {@link BidirectA#builder()} instead of private constructor to create new builder.
*/
protected Builder( ) {
}
/**
* Use {@link BidirectA#builder(BidirectA)} instead of private constructor to create new builder.
*/
protected Builder( BidirectA pObject ) {
if (pObject != null) {
// Read attribute values from passed object.
this.setParent(pObject.parent);
}
}
/**
* Method sets association {@link #parent}.
*
* @param pParent Value to which {@link #parent} should be set.
* @return {@link Builder} Instance of this builder to support chaining setters. Method never returns null.
*/
public Builder setParent( BidirectA pParent ) {
parent = pParent;
return this;
}
/**
* Method creates a new instance of class BidirectA. The object will be initialized with the values of the builder.
*
* @return BidirectA Created object. The method never returns null.
*/
public BidirectA build( ) {
return new BidirectA(this);
}
}
/**
* Method returns association {@link #transientBs}.
*
* @return {@link Set} Value to which {@link #transientBs} is set. The method never returns null and the
* returned collection is unmodifiable.
*/
public Set getTransientBs( ) {
// Return all BidirectB objects as unmodifiable collection.
return Collections.unmodifiableSet(transientBs);
}
/**
* Method adds the passed object to {@link #transientBs}.
*
* @param pTransientBs Object that should be added to {@link #transientBs}. The parameter must not be null.
*/
void addToTransientBs( BidirectB pTransientBs ) {
// Add passed object to collection of associated BidirectB objects.
transientBs.add(pTransientBs);
}
/**
* Method adds all passed objects to {@link #transientBs}.
*
* @param pTransientBs Collection with all objects that should be added to {@link #transientBs}. The parameter must
* not be null.
*/
void addToTransientBs( Collection pTransientBs ) {
// Add all passed objects.
for (BidirectB lNextObject : pTransientBs) {
this.addToTransientBs(lNextObject);
}
}
/**
* Method removes the passed object from {@link #transientBs}.
*
* @param pTransientBs Object that should be removed from {@link #transientBs}. The parameter must not be null.
*/
void removeFromTransientBs( BidirectB pTransientBs ) {
// Remove passed object from collection of associated BidirectB objects.
transientBs.remove(pTransientBs);
}
/**
* Method removes all objects from {@link #transientBs}.
*/
void clearTransientBs( ) {
// Remove all objects from association "transientBs".
Collection lTransientBs = new HashSet(transientBs);
Iterator lIterator = lTransientBs.iterator();
while (lIterator.hasNext()) {
// As association is bidirectional we have to clear it in both directions.
this.removeFromTransientBs(lIterator.next());
}
}
/**
* Method returns association {@link #parent}.
*
* @return {@link BidirectA} Value to which {@link #parent} is set.
*/
public BidirectA getParent( ) {
// Due to restrictions in JSON serialization / deserialization bi-directional associations need a special handling
// after an object was deserialized.
if (parentBackReferenceInitialized == false) {
parentBackReferenceInitialized = true;
parent.setTransientChild((BidirectA) this);
}
return parent;
}
/**
* Method sets association {@link #parent}.
*
* @param pParent Value to which {@link #parent} should be set.
*/
public void setParent( BidirectA pParent ) {
// Release already referenced object before setting a new association.
if (parent != null) {
parent.unsetTransientChild();
}
parent = pParent;
// 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 (pParent != null && this.equals(pParent.getTransientChild()) == false) {
pParent.setTransientChild((BidirectA) this);
}
}
/**
* Method unsets {@link #parent}.
*/
public final void unsetParent( ) {
// 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 = parent;
parent = null;
if (lBidirectA != null && this.equals(lBidirectA.getTransientChild()) == true) {
lBidirectA.unsetTransientChild();
}
}
/**
* Method returns association {@link #transientChild}.
*
* @return {@link BidirectA} Value to which {@link #transientChild} is set.
*/
public BidirectA getTransientChild( ) {
return transientChild;
}
/**
* Method sets association {@link #transientChild}.
*
* @param pTransientChild Value to which {@link #transientChild} should be set.
*/
void setTransientChild( BidirectA pTransientChild ) {
// Release already referenced object before setting a new association.
if (transientChild != null) {
transientChild.unsetParent();
}
transientChild = pTransientChild;
}
/**
* Method unsets {@link #transientChild}.
*/
final void unsetTransientChild( ) {
transientChild = null;
}
@Override
public int hashCode( ) {
final int lPrime = 31;
int lResult = 1;
lResult = lPrime * lResult + Objects.hashCode(parent);
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 {
BidirectA lOther = (BidirectA) pObject;
lEquals = Objects.equals(parent, lOther.parent);
}
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("parent: ");
if (parent != null) {
lBuilder.append(System.lineSeparator());
lBuilder.append(parent.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 BidirectA objects. The method never returns
* null.
*/
public Builder toBuilder( ) {
return new Builder(this);
}
}