/*
 * Copyright (C) 2011 Google 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 com.google.gson.internal;

import java.io.ObjectStreamException;
import java.math.BigDecimal;

This class holds a number value that is lazily converted to a specific number type
Author:Inderjeet Singh
/** * This class holds a number value that is lazily converted to a specific number type * * @author Inderjeet Singh */
public final class LazilyParsedNumber extends Number { private final String value;
Params:
  • value – must not be null
/** @param value must not be null */
public LazilyParsedNumber(String value) { this.value = value; } @Override public int intValue() { try { return Integer.parseInt(value); } catch (NumberFormatException e) { try { return (int) Long.parseLong(value); } catch (NumberFormatException nfe) { return new BigDecimal(value).intValue(); } } } @Override public long longValue() { try { return Long.parseLong(value); } catch (NumberFormatException e) { return new BigDecimal(value).longValue(); } } @Override public float floatValue() { return Float.parseFloat(value); } @Override public double doubleValue() { return Double.parseDouble(value); } @Override public String toString() { return value; }
If somebody is unlucky enough to have to serialize one of these, serialize it as a BigDecimal so that they won't need Gson on the other side to deserialize it.
/** * If somebody is unlucky enough to have to serialize one of these, serialize * it as a BigDecimal so that they won't need Gson on the other side to * deserialize it. */
private Object writeReplace() throws ObjectStreamException { return new BigDecimal(value); } @Override public int hashCode() { return value.hashCode(); } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj instanceof LazilyParsedNumber) { LazilyParsedNumber other = (LazilyParsedNumber) obj; return value == other.value || value.equals(other.value); } return false; } }