it.filosganga.mobile.widgets.component.TableColumn.java Source code

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Here is the source code for it.filosganga.mobile.widgets.component.TableColumn.java

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/*
 * $Id$
 * 
 * This file is released under the GNU General Public License. 
 * Refer to the COPYING file distributed with this package.
 *
 * Copyright (c) 2008 WURFL-Pro S.r.l.
 */
package it.filosganga.mobile.widgets.component;

import org.apache.commons.lang.Validate;
import org.apache.commons.lang.builder.EqualsBuilder;
import org.apache.commons.lang.builder.HashCodeBuilder;
import org.apache.commons.lang.builder.ToStringBuilder;

/**
 * @author Filippo De Luca
 * @version $Id$
 */
public class TableColumn extends Component {

    private static final long serialVersionUID = 10L;

    private String label;

    private String shortLabel;

    private int colspan = 1;

    public TableColumn(String label) {
        this(label, null, 1);
    }

    public TableColumn(String label, String shortLabel) {
        this(label, shortLabel, 1);
    }

    public TableColumn(String label, String shortLabel, int colspan) {

        Validate.notEmpty(label);
        Validate.isTrue(colspan >= 1);

        this.label = label;
        this.shortLabel = shortLabel;
        this.colspan = colspan;
    }

    // Access methods *****************************************************

    public String getLabel() {
        return label;
    }

    public String getShortLabel() {
        return shortLabel;
    }

    public int getColspan() {
        return colspan;
    }

    // Business methods ***************************************************

    public TableHeader getHeader() {
        return (TableHeader) getParent();
    }

    public Table getTable() {

        if (getHeader() == null) {
            throw new IllegalStateException("The column have no associated header");
        }

        return getHeader().getTable();
    }

    public int getIndex() {

        if (getHeader() == null) {
            throw new IllegalStateException("The column have no associated header");
        }

        return getHeader().getColumnIndex(this);
    }

    // Commons methods ****************************************************

    @Override
    public boolean equals(Object obj) {
        EqualsBuilder builder = new EqualsBuilder();

        builder.appendSuper(super.equals(obj));
        if (builder.isEquals() && obj instanceof TableColumn) {
            TableColumn other = (TableColumn) obj;

            builder.append(label, other.label);
            builder.append(shortLabel, other.shortLabel);
            builder.append(colspan, other.colspan);
        }

        return builder.isEquals();
    }

    @Override
    public int hashCode() {
        HashCodeBuilder builder = new HashCodeBuilder();

        builder.appendSuper(super.hashCode());
        builder.append(label).append(shortLabel).append(colspan);

        return builder.toHashCode();
    }

    @Override
    public String toString() {
        ToStringBuilder builder = new ToStringBuilder(this);

        builder.appendSuper(super.toString());
        builder.append(label).append(shortLabel).append(colspan);

        return builder.toString();
    }

}