io.permazen.core.FieldSwitchAdapter Maven / Gradle / Ivy

Go to download

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

package io.permazen.core;

import java.util.Collection;

/**
 * Adapter class for {@link FieldSwitch}.
 *
 * @param  switch method return type
 */
public class FieldSwitchAdapter implements FieldSwitch {

    /**
     * Handle a {@link SetField}.
     *
     * 
     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseCollectionField caseCollectionField()}.
     */
    @Override
    public  R caseSetField(SetField field) {
        return this.caseCollectionField(field);
    }

    /**
     * Handle a {@link ListField}.
     *
     * 

     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseCollectionField caseCollectionField()}.
     */
    @Override
    public  R caseListField(ListField field) {
        return this.caseCollectionField(field);
    }

    /**
     * Handle a {@link MapField}.
     *
     * 

     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseComplexField caseComplexField()}.
     */
    @Override
    public  R caseMapField(MapField field) {
        return this.caseComplexField(field);
    }

    /**
     * Handle a {@link SimpleField}.
     *
     * 

     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseField caseField()}.
     */
    @Override
    public  R caseSimpleField(SimpleField field) {
        return this.caseField(field);
    }

    /**
     * Handle a {@link ReferenceField}.
     *
     * 

     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseSimpleField caseSimpleField()}.
     */
    @Override
    public R caseReferenceField(ReferenceField field) {
        return this.caseSimpleField(field);
    }

    /**
     * Handle a {@link CounterField}.
     *
     * 

     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseField caseField()}.
     */
    @Override
    public R caseCounterField(CounterField field) {
        return this.caseField(field);
    }

    /**
     * Handle a {@link EnumField}.
     *
     * 

     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseSimpleField caseSimpleField()}.
     */
    @Override
    public R caseEnumField(EnumField field) {
        return this.caseSimpleField(field);
    }

    /**
     * Adapter class roll-up method.
     *
     * 

     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseComplexField caseComplexField()}.
     *
     * @param field visiting field
     * @param  visiting field type
     * @param  collection element type
     * @return visitor return value
     */
    protected , E> R caseCollectionField(CollectionField field) {
        return this.caseComplexField(field);
    }

    /**
     * Adapter class roll-up method.
     *
     * 

     * The implementation in {@link FieldSwitchAdapter} delegates to {@link #caseField caseField()}.
     *
     * @param field visiting field
     * @param  visiting field type
     * @return visitor return value
     */
    protected  R caseComplexField(ComplexField field) {
        return this.caseField(field);
    }

    /**
     * Adapter class roll-up method.
     *
     * 
     * The implementation in {@link FieldSwitchAdapter} always throws {@link UnsupportedOperationException}.
     *
     * @param field visiting field
     * @param  visiting field type
     * @return visitor return value
     */
    protected  R caseField(Field field) {
        throw new UnsupportedOperationException("field type not handled: " + field);
    }
}