/**
 *  ServingXML
 *  
 *  Copyright (C) 2006  Daniel Parker
 *    daniel.parker@servingxml.com 
 * 
 * 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.servingxml.components.recordio;

import com.servingxml.app.ServiceContext;
import com.servingxml.util.ServingXmlException;
import com.servingxml.io.cache.Expirable;
import com.servingxml.io.cache.Key;
import com.servingxml.app.Flow;
import com.servingxml.io.cache.DefaultKey;

public class NullRecordFilter implements RecordFilter {
  private static final Key key = DefaultKey.newInstance();

  public final void readRecords(ServiceContext context, Flow flow) {
  }

  public final Key getKey() {
    return key;
  }

  public final Expirable getExpirable() {
    return Expirable.IMMEDIATE_EXPIRY;
  }

  public final RecordWriter getRecordWriter() {
    return RecordWriter.NULL;
  }

  public final void setRecordWriter(RecordWriter recordWriter) {
  }

  public final RecordWriter getDiscardWriter() {
    return RecordWriter.NULL;
  }

  public final void setDiscardWriter(RecordWriter discardWriter) {
  }

  public final void startRecordStream(ServiceContext context, Flow flow) {
  }

  public final void endRecordStream(ServiceContext context, Flow flow) {
  }

  public final void writeRecord(ServiceContext context, Flow flow) {
  }

  public final void close() {
  }

  public void setRecordReader(RecordReader recordReader) {
  }

  public void discardRecord(ServiceContext context, Flow flow, ServingXmlException e) {
  }
}

