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JSimpleDB core API classes which provide objects, fields, indexes, queries, and schema management on top of a key/value store.

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

package org.jsimpledb.schema;

import javax.xml.stream.XMLStreamException;
import javax.xml.stream.XMLStreamWriter;

/**
 * A counter field in a {@link SchemaObjectType}.
 */
public class CounterSchemaField extends SchemaField {

// SchemaFieldSwitch

    @Override
    public  R visit(SchemaFieldSwitch target) {
        return target.caseCounterSchemaField(this);
    }

// XML Writing

    @Override
    void writeXML(XMLStreamWriter writer) throws XMLStreamException {
        writer.writeEmptyElement(XMLConstants.COUNTER_FIELD_TAG.getNamespaceURI(), XMLConstants.COUNTER_FIELD_TAG.getLocalPart());
        this.writeAttributes(writer);
    }

// Compatibility

    @Override
    boolean isCompatibleWith(SchemaField field) {
        if (field.getClass() != this.getClass())
            return false;
        return true;
    }

// Object

    @Override
    public String toString() {
        return "counter " + super.toString();
    }

// Cloneable

    @Override
    public CounterSchemaField clone() {
        return (CounterSchemaField)super.clone();
    }
}