JsonArray.java

package com.google.gson;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

public final class JsonArray extends JsonElement
  implements Iterable<JsonElement>
{
  private final List<JsonElement> elements;

  public JsonArray()
  {
    this.elements = new ArrayList();
  }

  public void add(JsonElement element)
  {
    if (element == null) {
      element = JsonNull.INSTANCE;
    }
    this.elements.add(element);
  }

  public Iterator<JsonElement> iterator()
  {
    return this.elements.iterator();
  }

  public Number getAsNumber()
  {
    if (this.elements.size() == 1) {
      return ((JsonElement)this.elements.get(0)).getAsNumber();
    }
    throw new IllegalStateException();
  }

  public String getAsString()
  {
    if (this.elements.size() == 1) {
      return ((JsonElement)this.elements.get(0)).getAsString();
    }
    throw new IllegalStateException();
  }

  public double getAsDouble()
  {
    if (this.elements.size() == 1) {
      return ((JsonElement)this.elements.get(0)).getAsDouble();
    }
    throw new IllegalStateException();
  }

  public long getAsLong()
  {
    if (this.elements.size() == 1) {
      return ((JsonElement)this.elements.get(0)).getAsLong();
    }
    throw new IllegalStateException();
  }

  public int getAsInt()
  {
    if (this.elements.size() == 1) {
      return ((JsonElement)this.elements.get(0)).getAsInt();
    }
    throw new IllegalStateException();
  }

  public boolean getAsBoolean()
  {
    if (this.elements.size() == 1) {
      return ((JsonElement)this.elements.get(0)).getAsBoolean();
    }
    throw new IllegalStateException();
  }

  public boolean equals(Object o)
  {
    return (o == this) || (((o instanceof JsonArray)) && (((JsonArray)o).elements.equals(this.elements)));
  }

  public int hashCode()
  {
    return this.elements.hashCode();
  }
}