source: josm/trunk/src/org/openstreetmap/josm/data/correction/TagCorrection.java@ 10125

// License: GPL. For details, see LICENSE file.
package org.openstreetmap.josm.data.correction;

/**
 * Represents a change of a single tag.
 * Both key and value can be subject of this change.
 * @since 729
 */
public class TagCorrection implements Correction {

    /** Old key */
    public final String oldKey;
    /** New key */
    public final String newKey;
    /** Old value */
    public final String oldValue;
    /** New value */
    public final String newValue;

    /**
     * Constructs a new {@code TagCorrection}.
     * @param oldKey old key
     * @param oldValue old value
     * @param newKey new key
     * @param newValue new value
     */
    public TagCorrection(String oldKey, String oldValue, String newKey, String newValue) {
        this.oldKey = oldKey;
        this.oldValue = oldValue;
        this.newKey = newKey;
        this.newValue = newValue;
    }

    /**
     * Determines if the key has changed.
     * @return {@code true} if the key has changed
     */
    public boolean isKeyChanged() {
        return !newKey.equals(oldKey);
    }

    /**
     * Determines if the value has changed.
     * @return {@code true} if the value has changed
     */
    public boolean isValueChanged() {
        return !newValue.equals(oldValue);
    }
}