| /* |
| * reserved comment block |
| * DO NOT REMOVE OR ALTER! |
| */ |
| /* |
| * Copyright 1999-2002,2004 The Apache Software Foundation. |
| * |
| * 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. |
| */ |
| |
| /* |
| * WARNING: because java doesn't support multi-inheritance some code is |
| * duplicated. If you're changing this file you probably want to change |
| * DeferredAttrNSImpl.java at the same time. |
| */ |
| |
| package com.sun.org.apache.xerces.internal.dom; |
| |
| /** |
| * Attribute represents an XML-style attribute of an |
| * Element. Typically, the allowable values are controlled by its |
| * declaration in the Document Type Definition (DTD) governing this |
| * kind of document. |
| * <P> |
| * If the attribute has not been explicitly assigned a value, but has |
| * been declared in the DTD, it will exist and have that default. Only |
| * if neither the document nor the DTD specifies a value will the |
| * Attribute really be considered absent and have no value; in that |
| * case, querying the attribute will return null. |
| * <P> |
| * Attributes may have multiple children that contain their data. (XML |
| * allows attributes to contain entity references, and tokenized |
| * attribute types such as NMTOKENS may have a child for each token.) |
| * For convenience, the Attribute object's getValue() method returns |
| * the string version of the attribute's value. |
| * <P> |
| * Attributes are not children of the Elements they belong to, in the |
| * usual sense, and have no valid Parent reference. However, the spec |
| * says they _do_ belong to a specific Element, and an INUSE exception |
| * is to be thrown if the user attempts to explicitly share them |
| * between elements. |
| * <P> |
| * Note that Elements do not permit attributes to appear to be shared |
| * (see the INUSE exception), so this object's mutability is |
| * officially not an issue. |
| * <P> |
| * DeferredAttrImpl inherits from AttrImpl which does not support |
| * Namespaces. DeferredAttrNSImpl, which inherits from AttrNSImpl, does. |
| * @see DeferredAttrNSImpl |
| * |
| * @xerces.internal |
| * |
| * @author Andy Clark, IBM |
| * @author Arnaud Le Hors, IBM |
| * @since PR-DOM-Level-1-19980818. |
| */ |
| public final class DeferredAttrImpl |
| extends AttrImpl |
| implements DeferredNode { |
| |
| // |
| // Constants |
| // |
| |
| /** Serialization version. */ |
| static final long serialVersionUID = 6903232312469148636L; |
| |
| // |
| // Data |
| // |
| |
| /** Node index. */ |
| protected transient int fNodeIndex; |
| |
| // |
| // Constructors |
| // |
| |
| /** |
| * This is the deferred constructor. Only the fNodeIndex is given here. |
| * All other data, can be requested from the ownerDocument via the index. |
| */ |
| DeferredAttrImpl(DeferredDocumentImpl ownerDocument, int nodeIndex) { |
| super(ownerDocument, null); |
| |
| fNodeIndex = nodeIndex; |
| needsSyncData(true); |
| needsSyncChildren(true); |
| |
| } // <init>(DeferredDocumentImpl,int) |
| |
| // |
| // DeferredNode methods |
| // |
| |
| /** Returns the node index. */ |
| public int getNodeIndex() { |
| return fNodeIndex; |
| } |
| |
| // |
| // Protected methods |
| // |
| |
| /** Synchronizes the data (name and value) for fast nodes. */ |
| protected void synchronizeData() { |
| |
| // no need to sync in the future |
| needsSyncData(false); |
| |
| // fluff data |
| DeferredDocumentImpl ownerDocument = |
| (DeferredDocumentImpl) ownerDocument(); |
| name = ownerDocument.getNodeName(fNodeIndex); |
| int extra = ownerDocument.getNodeExtra(fNodeIndex); |
| isSpecified((extra & SPECIFIED) != 0); |
| isIdAttribute((extra & ID) != 0); |
| |
| int extraNode = ownerDocument.getLastChild(fNodeIndex); |
| type = ownerDocument.getTypeInfo(extraNode); |
| } // synchronizeData() |
| |
| /** |
| * Synchronizes the node's children with the internal structure. |
| * Fluffing the children at once solves a lot of work to keep |
| * the two structures in sync. The problem gets worse when |
| * editing the tree -- this makes it a lot easier. |
| */ |
| protected void synchronizeChildren() { |
| DeferredDocumentImpl ownerDocument = |
| (DeferredDocumentImpl) ownerDocument(); |
| ownerDocument.synchronizeChildren(this, fNodeIndex); |
| } // synchronizeChildren() |
| |
| } // class DeferredAttrImpl |