ContributionItemDescriptor.java

/**
 * 
 */
package com.topsun.posclient.application;

import org.eclipse.core.runtime.IConfigurationElement;
import org.eclipse.jface.action.IContributionItem;

public abstract class ContributionItemDescriptor implements IDescriptor {
	protected String id;
	protected int index;
	protected String category;
	protected boolean visible;
	protected String text;
	protected String applicationId;
	protected boolean defaultItem;

	public String getApplicationId() {
		return applicationId;
	}

	void setApplicationId(String applicationId) {
		this.applicationId = applicationId;
	}

	void setId(String id) {
		this.id = id;
	}

	public String getId() {
		return id;
	}

	void setIndex(int index) {
		this.index = index;
	}

	public int getIndex() {
		return index;
	}

	void setCategory(String category) {
		this.category = category;
	}

	public String getCategory() {
		return category;
	}

	void setText(String text) {
		this.text = text;
	}

	public String getText() {
		return text;
	}

	void setVisible(boolean visible) {
		this.visible = visible;
	}

	public boolean isVisible() {
		return this.visible;
	}

	void setDefaultItem(boolean defaultItem) {
		this.defaultItem = defaultItem;
	}

	public boolean isDefaultItem() {
		return this.defaultItem;
	}
	
	
	public void init(IConfigurationElement element) {
		setId(element.getAttribute("id"));
		setIndex(Integer.parseInt(element.getAttribute("index") == null ? "0"
				: element.getAttribute("index")));
		setCategory(element.getAttribute("category"));
		setText(element.getAttribute("text"));
		setVisible(Boolean.parseBoolean(element.getAttribute("visible") == null
				? "true" : element.getAttribute("visible")));
		setDefaultItem(Boolean.parseBoolean(element.getAttribute("defaultItem") == null
				? "true" : element.getAttribute("defaultItem")));
		setApplicationId(element.getAttribute("applicationId") == null
				? "default"
				: element.getAttribute("applicationId"));
	}

	public abstract IContributionItem createItem();

	public boolean equals(Object other) {
		if (other instanceof ContributionItemDescriptor == false) {
			return false;
		}
		ContributionItemDescriptor otherDescriptor = (ContributionItemDescriptor) other;
		return getCategory().equals(otherDescriptor.getCategory()) && getId().equals(otherDescriptor.getId());
	}

	public int hashCode() {
		int total = 17;
		int constant = 37;
		total = total * constant + (getCategory() != null
				? getCategory().hashCode() : 0);
		total = total * constant + (getId() != null ? getId().hashCode() : 0);
		return total;
	}

	public String toString() {
		return "{" + getCategory() + ":" + getId() + "}-[" + getApplicationId() + "]";
	}
}