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.Connection;
  import java.sql.ResultSet;
  import java.sql.SQLException;
  import java.sql.SQLWarning;
  import java.sql.Statement;
  
  /**
   * A {@link Statement} implementation which does nothing.
   */
  public class AvaticaNoopStatement implements Statement {
  
    private static final AvaticaNoopStatement INSTANCE = new AvaticaNoopStatement();
  
    public static AvaticaNoopStatement getInstance() {
      return INSTANCE;
    }
  
    private AvaticaNoopStatement() {}
  
    private UnsupportedOperationException unsupported() {
      return new UnsupportedOperationException("Unsupported");
    }
  
    @Override public ResultSet executeQuery(String sql) throws SQLException {
      return AvaticaNoopResultSet.getInstance();
    }
  
    @Override public int executeUpdate(String sql) throws SQLException {
      return 1;
    }
  
    @Override public void close() throws SQLException {}
  
    @Override public int getMaxFieldSize() throws SQLException {
      throw unsupported();
    }
  
    @Override public void setMaxFieldSize(int max) throws SQLException {}
  
    @Override public int getMaxRows() throws SQLException {
      throw unsupported();
    }
  
    @Override public void setMaxRows(int max) throws SQLException {}
  
    @Override public void setEscapeProcessing(boolean enable) throws SQLException {}
  
    @Override public int getQueryTimeout() throws SQLException {
      throw unsupported();
    }
  
    @Override public void setQueryTimeout(int seconds) throws SQLException {}
  
    @Override public void cancel() throws SQLException {}
  
    @Override public SQLWarning getWarnings() throws SQLException {
      throw unsupported();
    }
  
    @Override public void clearWarnings() throws SQLException {}
  
    @Override public void setCursorName(String name) throws SQLException {}
  
    @Override public boolean execute(String sql) throws SQLException {
      return false;
    }
  
    @Override public ResultSet getResultSet() throws SQLException {
      return AvaticaNoopResultSet.getInstance();
    }
  
    @Override public int getUpdateCount() throws SQLException {
      return 1;
    }
  
    @Override public boolean getMoreResults() throws SQLException {
      return false;
    }
  
    @Override public void setFetchDirection(int direction) throws SQLException {}
  
    @Override public int getFetchDirection() throws SQLException {
      throw unsupported();
    }
  
    @Override public void setFetchSize(int rows) throws SQLException {}
  
    @Override public int getFetchSize() throws SQLException {
      throw unsupported();
    }
  
    @Override public int getResultSetConcurrency() throws SQLException {
      throw unsupported();
    }
  
    @Override public int getResultSetType() throws SQLException {
      throw unsupported();
    }
  
    @Override public void addBatch(String sql) throws SQLException {}
  
    @Override public void clearBatch() throws SQLException {}
  
    @Override public int[] executeBatch() throws SQLException {
      return new int[0];
    }
  
    @Override public Connection getConnection() throws SQLException {
      return AvaticaNoopConnection.getInstance();
    }
  
    @Override public boolean getMoreResults(int current) throws SQLException {
      throw unsupported();
    }
  
    @Override public ResultSet getGeneratedKeys() throws SQLException {
      throw unsupported();
    }
  
    @Override public int executeUpdate(String sql, int autoGeneratedKeys) throws SQLException {
      return 1;
    }
  
    @Override public int executeUpdate(String sql, int[] columnIndexes) throws SQLException {
      return 1;
    }
  
    @Override public int executeUpdate(String sql, String[] columnNames) throws SQLException {
      return 1;
    }
  
    @Override public boolean execute(String sql, int autoGeneratedKeys) throws SQLException {
      return true;
    }
  
    @Override public boolean execute(String sql, int[] columnIndexes) throws SQLException {
      return true;
    }
  
    @Override public boolean execute(String sql, String[] columnNames) throws SQLException {
      return true;
    }
  
    @Override public int getResultSetHoldability() throws SQLException {
      throw unsupported();
    }
  
    @Override public boolean isClosed() throws SQLException {
      return false;
    }
  
    @Override public void setPoolable(boolean poolable) throws SQLException {}
  
    @Override public boolean isPoolable() throws SQLException {
      return true;
    }
  
    @Override public void closeOnCompletion() throws SQLException {}
  
    @Override public boolean isCloseOnCompletion() throws SQLException {
      throw unsupported();
    }
  
    @Override public <T> T unwrap(Class<T> iface) throws SQLException {
      throw unsupported();
    }
  
    @Override public boolean isWrapperFor(Class<?> iface) throws SQLException {
      throw unsupported();
    }
  }
  
  // End AvaticaNoopStatement.java
  