content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to you 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 org.apache.calcite.avatica.noop;
  
  import java.sql.ParameterMetaData;
  import java.sql.SQLException;
  
  /**
   * An implementation of {@link ParameterMetaData} which does nothing.
   */
  public class AvaticaNoopParameterMetaData implements ParameterMetaData {
  
    private static final AvaticaNoopParameterMetaData INSTANCE = new AvaticaNoopParameterMetaData();
  
    public static AvaticaNoopParameterMetaData getInstance() {
      return INSTANCE;
    }
  
    private AvaticaNoopParameterMetaData() {}
  
    private UnsupportedOperationException unsupported() {
      return new UnsupportedOperationException("Unsupported");
    }
  
    @Override public <T> T unwrap(Class<T> iface) throws SQLException {
      throw unsupported();
    }
  
    @Override public boolean isWrapperFor(Class<?> iface) throws SQLException {
      return false;
    }
  
    @Override public int getParameterCount() throws SQLException {
      return 0;
    }
  
    @Override public int isNullable(int param) throws SQLException {
      return 0;
    }
  
    @Override public boolean isSigned(int param) throws SQLException {
      return false;
    }
  
    @Override public int getPrecision(int param) throws SQLException {
      return 0;
    }
  
    @Override public int getScale(int param) throws SQLException {
      return 0;
    }
  
    @Override public int getParameterType(int param) throws SQLException {
      return 0;
    }
  
    @Override public String getParameterTypeName(int param) throws SQLException {
      throw unsupported();
    }
  
    @Override public String getParameterClassName(int param) throws SQLException {
      return "java.lang.Object";
    }
  
    @Override public int getParameterMode(int param) throws SQLException {
      return 0;
    }
  
  }
  
  // End AvaticaNoopParameterMetaData.java
  