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package atom.beans.event;

import atom.view.View;

import java.util.List;
import java.util.Objects;

/**
 * Insert child property change event.
 *
 * @author Serge Voloshyn
 * @version 1.1 1/8/15
 */
public final class InsertChildPropertyChangeEvent
        extends AbstractInsertChildPropertyChangeEvent {
    /**
     * Use serialVersionUID from JDK 1.0.2 for interoperability.
     */
    private static final long serialVersionUID = 7042693688939648123L;

    /**
     * Identifier of the child to insert before.
     */
    private String before;

    /**
     * Constructs a new {@code PropertyChangeEvent}.
     *
     * @param source       the bean that fired the event
     * @param propertyName the programmatic name of the property that
     *                     was changed
     * @param oldValue     the old value of the property
     * @param aBefore      the identifier of the child to insert before
     * @param aChildren    list of children to insert
     */
    public InsertChildPropertyChangeEvent(final Object source,
                                          final String propertyName,
                                          final Object oldValue,
                                          final String aBefore,
                                          final List aChildren) {
        super(source, propertyName, oldValue, aChildren);
        before = aBefore;
    }

    /**
     * Get the identifier of the child to insert before.
     *
     * @return the identifier of the child to insert before
     */
    public String getBefore() {
        return before;
    }

    @Override
    public int hashCode() {
        return Objects.hash(getPropertyName(), getPropagationId(),
                before, getChildren());
    }

    @Override
    public boolean equals(final Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        final InsertChildPropertyChangeEvent that
                = (InsertChildPropertyChangeEvent) o;

        return Objects.equals(getPropertyName(), that.getPropertyName())
                && Objects.equals(getPropagationId(), that.getPropagationId())
                && Objects.equals(before, that.before)
                && Objects.equals(getNewValue(), that.getNewValue());
    }

    @Override
    public String toString() {
        return String.format("InsertChildPropertyChangeEvent "
                        .concat("{propertyName='%s', propagationId='%s', ")
                        .concat("oldValue='%s', source='%s', before='%s', ")
                        .concat("children='%s'}"),
                getPropertyName(),
                getPropagationId(),
                getOldValue(),
                getSource(),
                before,
                getChildren());
    }
}