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/**
 * Copyright 2012 Twitter, Inc.
 *
 * 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 parquet.column.values.boundedint;

import static parquet.column.Encoding.BIT_PACKED;
import parquet.bytes.BytesInput;
import parquet.column.Encoding;
import parquet.column.values.ValuesWriter;
import parquet.io.api.Binary;

/**
 * This is a special writer that doesn't write anything. The idea being that
 * some columns will always be the same value, and this will capture that. An
 * example is the set of repetition levels for a schema with no repeated fields.
 */
public class DevNullValuesWriter extends ValuesWriter {
  @Override
  public long getBufferedSize() {
    return 0;
  }

  @Override
  public void reset() {
  }

  @Override
  public void writeInteger(int v) {
  }

  @Override
  public void writeByte(int value) {
  }

  @Override
  public void writeBoolean(boolean v) {
  }

  @Override
  public void writeBytes(Binary v) {
  }

  @Override
  public void writeLong(long v) {
  }

  @Override
  public void writeDouble(double v) {
  }

  @Override
  public void writeFloat(float v) {
  }

  @Override
  public BytesInput getBytes() {
    return BytesInput.empty();
  }

  @Override
  public long getAllocatedSize() {
    return 0;
  }

  @Override
  public Encoding getEncoding() {
    return BIT_PACKED;
  }

  @Override
  public String memUsageString(String prefix) {
    return prefix + "0";
  }
}