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    • com.github.TKnudsen.ComplexDataObject.data.complexDataObject.ComplexDataObject Maven / Gradle / Ivy

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    A library that models real-world objects in Java, referred to as ComplexDataObjects. Other features: IO and preprocessing of ComplexDataObjects.

    The newest version!
    package com.github.TKnudsen.ComplexDataObject.data.complexDataObject;

import java.util.ArrayList;
import java.util.List;
import java.util.concurrent.CopyOnWriteArrayList;

import com.fasterxml.jackson.annotation.JsonIgnore;
import com.github.TKnudsen.ComplexDataObject.data.complexDataObject.events.IComplexDataObjectListener;
import com.github.TKnudsen.ComplexDataObject.data.interfaces.ISelfDescription;
import com.github.TKnudsen.ComplexDataObject.data.keyValueObject.KeyValueObject;

/**
 * 
    
 * Description: ComplexDataObject is a key-value store that can be used to model
 * complex real-world objects.
 * 
 * For the use of ComplexDataObject in combination with DB solutions some
 * constructors allow the definition of the ID from an external competence.
 * 
    
 * 
 * 
    
 * Copyright: Copyright (c) 2015-2019
 * 
    
 * 
 * @author Juergen Bernard
 * @version 1.08
 */
public class ComplexDataObject extends KeyValueObject implements ISelfDescription {

//	protected String name;
//	protected String description;

	@JsonIgnore
	private List listeners = new CopyOnWriteArrayList<>();

	public ComplexDataObject() {
		super();

		// attribute schema will identify attributes as String
		add("Name", "no name");
		add("Description", "no description");
	}

	public ComplexDataObject(long ID) {
		super(ID);

		// attribute schema will identify attributes as String
		add("Name", "no name");
		add("Description", "no description");
	}

	public ComplexDataObject(String name, String description) {
		super();

//		this.name = name;
//		this.description = description;

		// attribute schema will characterize attributes as String
		add("Name", "no name");
		add("Description", "no description");

		setName(name);
		setDescription(description);
	}

	public ComplexDataObject(Long ID, String name, String description) {
		super(ID);

//		this.name = name;
//		this.description = description;

		// attribute schema will characterize attributes as String
		add("Name", "no name");
		add("Description", "no description");

		setName(name);
		setDescription(description);
	}

	public String toStringInLine() {
		String output = "";
		for (String key : attributes.keySet())
			output += (attributes.get(key) == null) ? (key + attributes.get(key) + "/t")
					: (key + attributes.get(key).toString() + "/t");
		return output;
	}

	@Override
	public String toString() {
		String output = "Name: " + getName() + "\n";
		output += super.toString();

		return output;
	}

	@Override
	public String getName() {
//		if (name != null)
//			return name;

		if (getAttribute("Name") != null)
			return getAttribute("Name").toString();

		return String.valueOf(getID());
	}

	public void setName(String name) {
//		this.name = name;

		this.add("Name", name);
	}

	@Override
	public String getDescription() {
//		if (description != null)
//			return description;

		if (getAttribute("Description") != null)
			return getAttribute("Description").toString();

		return "no description for " + getName();
	}

	public void setDescription(String description) {
//		this.description = description;

		this.add("Description", description);
	}

	@Override
	public void add(String attribute, Object value) {
		super.add(attribute, value);

		fireAttributeValueChanged(attribute);
	}

	@Override
	public Object removeAttribute(String attribute) {
		Object removeAttribute = super.removeAttribute(attribute);

		fireAttributeRemoved(attribute);

		return removeAttribute;
	}

	/**
	 * retrieves all attributes for objects matching a given class type.
	 * 
	 * @param classType
	 * @return List of attributes
	 */
	public List getAttributes(Class classType) {
		List properties = new ArrayList<>();
		for (String property : attributes.keySet())
			if (getAttribute(property) != null && getAttribute(property) != null
					&& getAttribute(property).getClass().equals(classType))
				if (!properties.contains(property))
					properties.add(property);
		return properties;
	}

	public List getListeners() {
		return listeners;
	}

	public void addComplexDataObjectListener(IComplexDataObjectListener listener) {
		if (listeners.contains(listener))
			listeners.remove(listener);

		this.listeners.add(listener);
	}

	private final void fireAttributeValueChanged(String attribute) {
		for (IComplexDataObjectListener listener : listeners)
			listener.attributeValueChanged(this, attribute);
	}

	private final void fireAttributeRemoved(String attribute) {
		for (IComplexDataObjectListener listener : listeners)
			listener.attributeRemoved(this, attribute);
	}

}
    
    
    
    

    




    
    
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