Example usage for org.jfree.data KeyedObject getKey

Introduction

In this page you can find the example usage for org.jfree.data KeyedObject getKey.

Prototype

public Comparable getKey() 

Source Link

Document

Returns the key.

Usage

From source file:org.jfree.data.KeyedObjectComparator.java

/**
 * Compares two {@link KeyedValue} instances and returns an
 * <code>int</code> that indicates the relative order of the two objects.
 *
 * @param o1  object 1.//from  w w  w  .j  a va2 s .  c o m
 * @param o2  object 2.
 *
 * @return An int indicating the relative order of the objects.
 */
public int compare(Object o1, Object o2) {

    if (o2 == null) {
        return -1;
    }
    if (o1 == null) {
        return 1;
    }

    KeyedObject ko1 = (KeyedObject) o1;
    KeyedObject ko2 = (KeyedObject) o2;

    if (this.type == KeyedObjectComparatorType.BY_KEY) {
        if (this.order.equals(SortOrder.ASCENDING)) {
            return ko1.getKey().compareTo(ko2.getKey());
        } else if (this.order.equals(SortOrder.DESCENDING)) {
            return ko2.getKey().compareTo(ko1.getKey());
        } else {
            throw new IllegalArgumentException("Unrecognised sort order.");
        }
    } else if (this.type == KeyedObjectComparatorType.BY_VALUE) {
        Object n1 = ko1.getObject();
        Object n2 = ko2.getObject();
        Comparable c1 = "FALLBACK";
        if (n1 instanceof Comparable) {
            c1 = (Comparable) n1;
        }
        Comparable c2 = "FALLBACK";
        if (n2 instanceof Comparable) {
            c2 = (Comparable) n2;
        }
        if (n2 == null) {
            return -1;
        }
        if (n1 == null) {
            return 1;
        }
        if (this.order.equals(SortOrder.ASCENDING)) {
            return c1.compareTo(c2);
        } else if (this.order.equals(SortOrder.DESCENDING)) {
            return c2.compareTo(c1);
        } else {
            throw new IllegalArgumentException("Unrecognised sort order.");
        }
    } else {
        throw new IllegalArgumentException("Unrecognised type.");
    }
}

---

From source file:org.jfree.data.KeyedObjects.java

/**
 * Returns the index for a given key, or <code>-1</code>.
 *
 * @param key  the key (<code>null</code> not permitted).
 *
 * @return The index, or <code>-1</code> if the key is unrecognised.
 *
 * @see #getKey(int)/*from  w w  w.j  a  v a2  s . c  o  m*/
 */
public int getIndex(Comparable key) {
    ParamChecks.nullNotPermitted(key, "key");
    int i = 0;
    Iterator iterator = this.data.iterator();
    while (iterator.hasNext()) {
        KeyedObject ko = (KeyedObject) iterator.next();
        if (ko.getKey().equals(key)) {
            return i;
        }
        i++;
    }
    return -1;
}

---

From source file:org.jfree.data.KeyedObjects.java

/**
 * Returns a list containing all the keys in the list.
 *
 * @return The keys (never <code>null</code>).
 *///from ww w  . java 2 s.c  o m
public List getKeys() {
    List result = new java.util.ArrayList();
    Iterator iterator = this.data.iterator();
    while (iterator.hasNext()) {
        KeyedObject ko = (KeyedObject) iterator.next();
        result.add(ko.getKey());
    }
    return result;
}

---

From source file:org.jfree.data.KeyedObjects.java

/**
 * Returns the key at the specified position in the list.
 *
 * @param index  the item index (zero-based).
 *
 * @return The row key.//from w  w  w  . j  av a 2s. c  o m
 *
 * @throws IndexOutOfBoundsException if <code>item</code> is out of bounds.
 *
 * @see #getIndex(Comparable)
 */
public Comparable getKey(int index) {
    Comparable result = null;
    KeyedObject item = (KeyedObject) this.data.get(index);
    if (item != null) {
        result = item.getKey();
    }
    return result;
}

---