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protobuf serialization for pre-existing objects

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//========================================================================
//Copyright 2007-2011 David Yu [email protected]
//------------------------------------------------------------------------
//Licensed under the Apache License, Version 2.0 (the "License");
//you may not use this file except in compliance with the License.
//You may obtain a copy of the License at 
//http://www.apache.org/licenses/LICENSE-2.0
//Unless required by applicable law or agreed to in writing, software
//distributed under the License is distributed on an "AS IS" BASIS,
//WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//See the License for the specific language governing permissions and
//limitations under the License.
//========================================================================

package com.dyuproject.protostuff.runtime;

import com.dyuproject.protostuff.Pipe;
import com.dyuproject.protostuff.Schema;
import com.dyuproject.protostuff.Tag;
import com.dyuproject.protostuff.WireFormat.FieldType;
import com.dyuproject.protostuff.runtime.MappedSchema.Field;

/**
 * A runtime message field that lazily loads the schema to support cyclic dependencies. 
 *
 * @author David Yu
 * @created Jan 19, 2011
 */
abstract class RuntimeMessageField extends Field
{
    
    /**
     * The class of the message field.
     */
    public final Class typeClass;
    
    final HasSchema
 hasSchema;
    
    public RuntimeMessageField(Class
 typeClass, HasSchema
 hasSchema, 
            FieldType type, int number, String name, boolean repeated, Tag tag)
    {
        super(type, number, name, repeated, tag);
        this.typeClass = typeClass;
        this.hasSchema = hasSchema;
    }
    
    /**
     * Returns the schema.
     */
    public Schema
 getSchema()
    {
        return hasSchema.getSchema();
    }
    
    /**
     * Returns the lazy initialized pipe schema.
     */
    public Pipe.Schema getPipeSchema()
    {
        return hasSchema.getPipeSchema();
    }

}