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+/*
+ * Copyright 2010, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+
+/**
+ * A ParamObject is the base class for all objects that can have Params.
+ * Defines methods to add and remove params, search for params, etc.
+ * @constructor
+ */
+o3d.ParamObject = function() {
+  this.params_ = {};
+};
+o3d.inherit('ParamObject', 'NamedObject');
+
+
+/**
+ * Creates a Param with the given name and type on the ParamObject.
+ * Will fail if a param with the same name already exists.
+ * 
+ * @param {string} param_name The name of the Param to be created.
+ * @param {string} param_type_name The type of Param to create.
+ *     Valid types are
+ *     'ParamBoolean'
+ *     'ParamBoundingBox'
+ *     'ParamDrawContext'
+ *     'ParamDrawList'
+ *     'ParamEffect'
+ *     'ParamFloat'
+ *     'ParamFloat2'
+ *     'ParamFloat3'
+ *     'ParamFloat4'
+ *     'ParamFunction'
+ *     'ParamInteger'
+ *     'ParamMaterial'
+ *     'ParamMatrix4'
+ *     'ParamParamArray'
+ *     'ParamRenderSurface'
+ *     'ParamRenderDepthStencilSurface'
+ *     'ParamSampler'
+ *     'ParamSkin'
+ *     'ParamSteamBank'
+ *     'ParamState'
+ *     'ParamString'
+ *     'ParamTexture'
+ *     'ParamTransform'
+ *     'ProjectionParamMatrix4'
+ *     'ProjectionInverseParamMatrix4'
+ *     'ProjectionTransposeParamMatrix4'
+ *     'ProjectionInverseTransposeParamMatrix4'
+ *     'ViewParamMatrix4'
+ *     'ViewInverseParamMatrix4'
+ *     'ViewTransposeParamMatrix4'
+ *     'ViewInverseTransposeParamMatrix4'
+ *     'ViewProjectionParamMatrix4'
+ *     'ViewProjectionInverseParamMatrix4'
+ *     'ViewProjectionTransposeParamMatrix4'
+ *     'ViewProjectionInverseTransposeParamMatrix4'
+ *     'WorldParamMatrix4'
+ *     'WorldInverseParamMatrix4'
+ *     'WorldTransposeParamMatrix4'
+ *     'WorldInverseTransposeParamMatrix4'
+ *     'WorldViewParamMatrix4'
+ *     'WorldViewInverseParamMatrix4'
+ *     'WorldViewTransposeParamMatrix4'
+ *     'WorldViewInverseTransposeParamMatrix4'
+ *     'WorldViewProjectionParamMatrix4'
+ *     'WorldViewProjectionInverseParamMatrix4'
+ *     'WorldViewProjectionTransposeParamMatrix4'
+ *     'WorldViewProjectionInverseTransposeParamMatrix4'
+ * @returns {!o3d.Param}  The newly created Param or null on failure.
+ */
+o3d.ParamObject.prototype.createParam =
+    function(param_name, param_type_name) {
+  if (!o3d.global.o3d[param_type_name])
+    throw ('Invalid param type name: ' + param_type_name);
+  var param = new o3d.global.o3d[param_type_name];
+  param.gl = this.gl;
+  param.owner_ = this;
+  this.params_[param_name] = param;
+  return this.params_[param_name];
+};
+
+
+/**
+ * Searches by name for a Param defined in the object.
+ * 
+ * @param {string} param_name Name to search for.
+ * @returns {!o3d.Param}  The Param with the given name, or null otherwise.
+ */
+o3d.ParamObject.prototype.getParam =
+    function(param_name) {
+  return this.params_[param_name];
+};
+
+
+/**
+ * Removes a Param from a ParamObject.
+ * 
+ * This function will fail if the param does not exist on this ParamObject
+ * or if the param is unremovable.
+ * 
+ * @param {!o3d.Param} param param to remove.
+ * @returns {boolean}  True if the param was removed.
+ */
+o3d.ParamObject.prototype.removeParam =
+    function(param) {
+  o3d.notImplemented();
+};
+
+
+/**
+ * Gets all the param on this param object.
+ * 
+ * Each access to this field gets the entire list, so it is best to get it
+ * just once. For example:
+ * 
+ * var params = paramObject.params;
+ * for (var i = 0; i < params.length; i++) {
+ *   var param = params[i];
+ * }
+ * 
+ * Note that modifications to this array [e.g. push()] will not affect
+ * the underlying ParamObject, while modifications to the array's members
+ * will affect them.
+ */
+o3d.ParamObject.prototype.params_ = {};
+
+
+/**
+ * Copies all the params from a the given source_param_object to this param
+ * object. Does not replace any currently existing params with the same name.
+ *
+ * @param {o3d.ParamObject} source_param_object param object to copy params
+ *     from.
+ */
+o3d.ParamObject.prototype.copyParams =
+    function(source_param_object) {
+  o3d.notImplemented();
+};
+
+