Java tutorial
/* * Copyright 2008 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.gwt.core.client; /** * A simple wrapper around a homogeneous native array of integer values. * * This class may not be directly instantiated, and can only be returned from a * native method. For example, * * <code> * native JsArrayInteger getNativeArray() /*-{ * return [1, 2, 3]; * }-* /; * </code> */ public class JsArrayInteger extends JavaScriptObject { protected JsArrayInteger() { } /** * Gets the value at a given index. * * If no value exists at the given index, a type-conversion error will occur * in Development Mode and unpredictable behavior may occur in Production * Mode. If the numeric value returned is non-integral, it will cause a * warning in Development Mode, and may affect the results of mathematical * expressions. * * @param index the index to be retrieved * @return the value at the given index */ public final native int get(int index) /*-{ return this[index]; }-*/; /** * Convert each element of the array to a String and join them with a comma * separator. The value returned from this method may vary between browsers * based on how JavaScript values are converted into strings. */ public final String join() { // As per JS spec return join(","); } /** * Convert each element of the array to a String and join them with a comma * separator. The value returned from this method may vary between browsers * based on how JavaScript values are converted into strings. */ public final native String join(String separator) /*-{ return this.join(separator); }-*/; /** * Gets the length of the array. * * @return the array length */ public final native int length() /*-{ return this.length; }-*/; /** * Pushes the given integer onto the end of the array. */ public final native void push(int value) /*-{ this[this.length] = value; }-*/; /** * Sets the value value at a given index. * * If the index is out of bounds, the value will still be set. The array's * length will be updated to encompass the bounds implied by the added value. * * @param index the index to be set * @param value the value to be stored */ public final native void set(int index, int value) /*-{ this[index] = value; }-*/; /** * Reset the length of the array. * * @param newLength the new length of the array */ public final native void setLength(int newLength) /*-{ this.length = newLength; }-*/; /** * Shifts the first value off the array. * * @return the shifted value */ public final native int shift() /*-{ return this.shift(); }-*/; /** * Shifts a value onto the beginning of the array. * * @param value the value to the stored */ public final native void unshift(int value) /*-{ this.unshift(value); }-*/; }