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Permazen classes that map Java model classes onto the core API.
There is a newer version: 5.1.0

/*
 * Copyright (C) 2015 Archie L. Cobbs. All rights reserved.
 */

package io.permazen.change;

/**
 * Adpater class for the {@link ChangeSwitch} interface.
 *
 * @param  method return type
 */
public class ChangeAdapter implements ChangeSwitch {

    /**
     * Handle a {@link ObjectCreate} event.
     *
     * 
     * The implementation in {@link ChangeAdapter} delegates to {@link #caseChange caseChange()}.
     */
    @Override
    public  R caseObjectCreate(ObjectCreate change) {
        return this.caseChange(change);
    }

    /**
     * Handle a {@link ObjectDelete} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseChange caseChange()}.
     */
    @Override
    public  R caseObjectDelete(ObjectDelete change) {
        return this.caseChange(change);
    }

    /**
     * Handle a {@link ListFieldAdd} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseListFieldChange caseListFieldChange()}.
     */
    @Override
    public  R caseListFieldAdd(ListFieldAdd change) {
        return this.caseListFieldChange(change);
    }

    /**
     * Handle a {@link ListFieldClear} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseListFieldChange caseListFieldChange()}.
     */
    @Override
    public  R caseListFieldClear(ListFieldClear change) {
        return this.caseListFieldChange(change);
    }

    /**
     * Handle a {@link ListFieldRemove} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseListFieldChange caseListFieldChange()}.
     */
    @Override
    public  R caseListFieldRemove(ListFieldRemove change) {
        return this.caseListFieldChange(change);
    }

    /**
     * Handle a {@link ListFieldReplace} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseListFieldChange caseListFieldChange()}.
     */
    @Override
    public  R caseListFieldReplace(ListFieldReplace change) {
        return this.caseListFieldChange(change);
    }

    /**
     * Handle a {@link MapFieldAdd} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseMapFieldChange caseMapFieldChange()}.
     */
    @Override
    public  R caseMapFieldAdd(MapFieldAdd change) {
        return this.caseMapFieldChange(change);
    }

    /**
     * Handle a {@link MapFieldClear} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseMapFieldChange caseMapFieldChange()}.
     */
    @Override
    public  R caseMapFieldClear(MapFieldClear change) {
        return this.caseMapFieldChange(change);
    }

    /**
     * Handle a {@link MapFieldRemove} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseMapFieldChange caseMapFieldChange()}.
     */
    @Override
    public  R caseMapFieldRemove(MapFieldRemove change) {
        return this.caseMapFieldChange(change);
    }

    /**
     * Handle a {@link MapFieldReplace} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseMapFieldChange caseMapFieldChange()}.
     */
    @Override
    public  R caseMapFieldReplace(MapFieldReplace change) {
        return this.caseMapFieldChange(change);
    }

    /**
     * Handle a {@link SetFieldAdd} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseSetFieldChange caseSetFieldChange()}.
     */
    @Override
    public  R caseSetFieldAdd(SetFieldAdd change) {
        return this.caseSetFieldChange(change);
    }

    /**
     * Handle a {@link SetFieldClear} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseSetFieldChange caseSetFieldChange()}.
     */
    @Override
    public  R caseSetFieldClear(SetFieldClear change) {
        return this.caseSetFieldChange(change);
    }

    /**
     * Handle a {@link SetFieldRemove} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseSetFieldChange caseSetFieldChange()}.
     */
    @Override
    public  R caseSetFieldRemove(SetFieldRemove change) {
        return this.caseSetFieldChange(change);
    }

    /**
     * Handle a {@link SimpleFieldChange} event.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseSetFieldChange caseFieldChange()}.
     */
    @Override
    public  R caseSimpleFieldChange(SimpleFieldChange change) {
        return this.caseFieldChange(change);
    }

// Roll-Up Methods

    /**
     * Internal roll-up method.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseFieldChange caseFieldChange()}.
     *
     * @param change visiting change
     * @param  changed object type
     * @return visitor return value
     */
    protected  R caseListFieldChange(ListFieldChange change) {
        return this.caseFieldChange(change);
    }

    /**
     * Internal roll-up method.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseFieldChange caseFieldChange()}.
     *
     * @param change visiting change
     * @param  changed object type
     * @return visitor return value
     */
    protected  R caseMapFieldChange(MapFieldChange change) {
        return this.caseFieldChange(change);
    }

    /**
     * Internal roll-up method.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseFieldChange caseFieldChange()}.
     *
     * @param change visiting change
     * @param  changed object type
     * @return visitor return value
     */
    protected  R caseSetFieldChange(SetFieldChange change) {
        return this.caseFieldChange(change);
    }

    /**
     * Internal roll-up method.
     *
     * 

     * The implementation in {@link ChangeAdapter} delegates to {@link #caseChange caseChange()}.
     *
     * @param change visiting change
     * @param  changed object type
     * @return visitor return value
     */
    protected  R caseFieldChange(FieldChange change) {
        return this.caseChange(change);
    }

    /**
     * Internal roll-up method.
     *
     * 
     * The implementation in {@link ChangeAdapter} returns null.
     *
     * @param change visiting change
     * @param  changed object type
     * @return visitor return value
     */
    protected  R caseChange(Change change) {
        return null;
    }
}