src/xalanc/XPath/XObjectFactoryDefault.hpp

/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you 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.
 */
#if !defined(XOBJECTFACTORYDEFAULT_HEADER_GUARD_1357924680)
#define XOBJECTFACTORYDEFAULT_HEADER_GUARD_1357924680



// Base include file.  Must be first.
#include <xalanc/XPath/XPathDefinitions.hpp>



#include <xalanc/Include/XalanVector.hpp>



// Base class header file...
#include <xalanc/XPath/XObjectFactory.hpp>



#include <xalanc/XPath/XBoolean.hpp>
#include <xalanc/XPath/XNodeSetAllocator.hpp>
#include <xalanc/XPath/XNodeSetNodeProxyAllocator.hpp>
#include <xalanc/XPath/XNumberAllocator.hpp>
#include <xalanc/XPath/XStringAllocator.hpp>
#include <xalanc/XPath/XStringAdapterAllocator.hpp>
#include <xalanc/XPath/XStringCachedAllocator.hpp>
#include <xalanc/XPath/XStringReferenceAllocator.hpp>
#include <xalanc/XPath/XTokenNumberAdapterAllocator.hpp>
#include <xalanc/XPath/XTokenStringAdapterAllocator.hpp>




namespace XALAN_CPP_NAMESPACE {



/**
 * This class handles the creation of XObjects and manages their lifetime.
 */
class XALAN_XPATH_EXPORT XObjectFactoryDefault : public XObjectFactory
{
public:

    // Default block size for strings.
    enum
    {
        eDefaultXStringBlockSize = 10,
        eDefaultXNumberBlockSize = 10,
        eDefaultXNodeSetBlockSize = 10,
        eDefaultXNodeSetNodeProxyBlockSize = 5,
        eXNumberCacheMax = 40,
        eXNodeSetCacheMax = 40,
        eXStringCacheMax = 40,
        eXResultTreeFragCacheMax = 40
    };

    typedef XNodeSetAllocator::size_type    size_type;

    /**
     * Construct a factory for creating XObjects.
     * 
     * @param theXStringBlockSize allocation block size
     * @param theXNumberBlockSize allocation block size
     * @param theXNodeSetBlockSize allocation block size
     */
    explicit
    XObjectFactoryDefault(
            MemoryManager& theManager XALAN_DEFAULT_MEMMGR,
            size_type   theXStringBlockSize = eDefaultXStringBlockSize,
            size_type   theXNumberBlockSize = eDefaultXNumberBlockSize,
            size_type   theXNodeSetBlockSize = eDefaultXNodeSetBlockSize,
            size_type   theXNodeSetNodeProxyBlockSize = eDefaultXNodeSetNodeProxyBlockSize); 

    static XObjectFactoryDefault*
    create(
            MemoryManager& theManager,
            size_type   theXStringBlockSize = eDefaultXStringBlockSize,
            size_type   theXNumberBlockSize = eDefaultXNumberBlockSize,
            size_type   theXNodeSetBlockSize = eDefaultXNodeSetBlockSize,
            size_type   theXNodeSetNodeProxyBlockSize = eDefaultXNodeSetNodeProxyBlockSize);


    virtual
    ~XObjectFactoryDefault();

    MemoryManager&
    getMemoryManager()
    {
        return m_xobjects.getMemoryManager();
    }
    // These methods are inherited from XObjectFactory ...

    virtual void
    reset();

    virtual const XObjectPtr
    createBoolean(bool  theValue);

    virtual const XObjectPtr
    createNodeSet(BorrowReturnMutableNodeRefList&   theValue);

    virtual const XObjectPtr
    createNodeSet(XalanNode*    theValue);

    virtual const XObjectPtr
    createNumber(double     theValue);

    virtual const XObjectPtr
    createNumber(const XToken&  theValue);

    virtual const XObjectPtr
    createString(const XalanDOMString&  theValue);

    virtual const XObjectPtr
    createString(const XalanDOMChar*    theValue);

    virtual const XObjectPtr
    createString(
            const XalanDOMChar*     theValue,
            XalanSize_t             theLength);

    virtual const XObjectPtr
    createString(const XToken&  theValue);

    virtual const XObjectPtr
    createStringReference(const XalanDOMString&     theValue);

    virtual const XObjectPtr
    createStringAdapter(
            const XObjectPtr&       theValue,
            XPathExecutionContext&  theExecutionContext);

    virtual const XObjectPtr
    createString(GetCachedString&   theValue);

    virtual const XObjectPtr
    createUnknown(const XalanDOMString&     theValue);

    virtual void
    holdReference(XObjectPtr    theValue);

    typedef XalanVector<XObject*>       XObjectCollectionType;
    typedef XalanVector<XNumber*>       XNumberCacheType;
    typedef XalanVector<XNodeSet*>      XNodeSetCacheType;
    typedef XalanVector<XString*>       XStringCacheType;

protected:

    virtual bool
    doReturnObject(
            XObject*    theXObject,
            bool        fInReset = false);

private:

    // Not implemented...
    XObjectFactoryDefault(const XObjectFactoryDefault&);

    XObjectFactoryDefault&
    operator=(const XObjectFactoryDefault&);

    bool
    operator==(const XObjectFactoryDefault&) const;


    // Data members...

    // This one's first, since it may be be holding references
    // to objects in other allocators.
    XStringAdapterAllocator         m_xstringAdapterAllocator;

    XStringAllocator                m_xstringAllocator;

    XStringCachedAllocator          m_xstringCachedAllocator;

    XStringReferenceAllocator       m_xstringReferenceAllocator;

    XNumberAllocator                m_xnumberAllocator;

    XNodeSetAllocator               m_xnodesetAllocator;

    XNodeSetNodeProxyAllocator      m_xnodesetNodeProxyAllocator;

    XTokenNumberAdapterAllocator    m_xtokenNumberAdapterAllocator;

    XTokenStringAdapterAllocator    m_xtokenStringAdapterAllocator;

    XObjectCollectionType           m_xobjects;

    XNumberCacheType                m_xnumberCache;

    XNodeSetCacheType               m_xnodesetCache;

    XStringCacheType                m_xstringCache;

    XBoolean                        m_xbooleanFalse;

    XBoolean                        m_xbooleanTrue;

    XalanVector<XObjectPtr>         m_references;
};



}



#endif  // XOBJECTFACTORYDEFAULT_HEADER_GUARD_1357924680