Java DataInput Read Long readLong(DataInput in)

Description

Reads a Long value.

License

Apache License

Parameter

Parameter	Description
in	the source

Exception

Parameter	Description
IOException	if an i/o exception occurs

Return

the value

Declaration

public static Long readLong(DataInput in) throws IOException 

Method Source Code

//package com.java2s;
/* See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * Esri Inc. 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.//from   w  ww .j a  v  a2s  .  c o  m
 */

import java.io.DataInput;

import java.io.IOException;

public class Main {
    /**
     * Reads a Long value.
     * @param in the source
     * @return the value
     * @throws IOException if an i/o exception occurs
     */
    public static Long readLong(DataInput in) throws IOException {
        if (readNullFlag(in))
            return null;
        return new Long(in.readLong());
    }

    /**
     * Reads a null flag.
     * @param in the source
     * @return true if null
     * @throws IOException if an i/o exception occurs
     */
    private static boolean readNullFlag(DataInput in) throws IOException {
        return in.readBoolean();
    }

    /**
     * Reads a Boolean value.
     * @param in the source
     * @return the value
     * @throws IOException if an i/o exception occurs
     */
    public static Boolean readBoolean(DataInput in) throws IOException {
        if (readNullFlag(in))
            return null;
        return new Boolean(in.readBoolean());
    }
}

Related

1. readLong(DataInput dataInput)
2. readLong(DataInput in)
3. readLongSequence(DataInput in)
4. readLongUTF8(DataInput in)