+++ /dev/null
-/*******************************************************************************
- * Copyright (c) 2000, 2001, 2002 International Business Machines Corp. and others.
- * All rights reserved. This program and the accompanying materials
- * are made available under the terms of the Common Public License v0.5
- * which accompanies this distribution, and is available at
- * http://www.eclipse.org/legal/cpl-v05.html
- *
- * Contributors:
- * IBM Corporation - initial API
- * IBM Corporation, 2002/03/01- added notion of shared working copy
- * IBM Corporation, 2002/26/01- added notion of IProblemRequestor
- ******************************************************************************/
-package net.sourceforge.phpdt.core;
-
-import org.eclipse.core.resources.IMarker;
-import org.eclipse.core.resources.IResource;
-import org.eclipse.core.runtime.IProgressMonitor;
-
-/**
- * Common protocol for Java elements that support working copies.
- * <p>
- * A working copy of a Java element acts just like a regular element (handle),
- * except it is not attached to an underlying resource. A working copy is not
- * visible to the rest of the Java model. Changes in a working copy's
- * buffer are not realized in a resource. To bring the Java model up-to-date with a working
- * copy's contents, an explicit commit must be performed on the working copy.
- * Other operations performed on a working copy update the
- * contents of the working copy's buffer but do not commit the contents
- * of the working copy.
- * </p>
- * <p>
- * Note: The contents of a working copy is determined when a working
- * copy is created, based on the current content of the element the working
- * copy is created from. If a working copy is an <code>IOpenable</code> and is explicitly
- * closed, the working copy's buffer will be thrown away. However, clients should not
- * explicitly open and close working copies.
- * </p>
- * <p>
- * The client that creates a working copy is responsible for
- * destroying the working copy. The Java model will never automatically
- * destroy or close a working copy. (Note that destroying a working copy
- * does not commit it to the model, it only frees up the memory occupied by
- * the element). After a working copy is destroyed, the working copy cannot
- * be accessed again. Non-handle methods will throw a
- * <code>JavaModelException</code> indicating the Java element does not exist.
- * </p>
- * <p>
- * A working copy cannot be created from another working copy.
- * Calling <code>getWorkingCopy</code> on a working copy returns the receiver.
- * </p>
- * <p>
- * This interface is not intended to be implemented by clients.
- * </p>
- */
-public interface IWorkingCopy {
-
- /**
- * Commits the contents of this working copy to its original element
- * and underlying resource, bringing the Java model up-to-date with
- * the current contents of the working copy.
- *
- * <p>It is possible that the contents of the original resource have changed
- * since this working copy was created, in which case there is an update conflict.
- * The value of the <code>force</code> parameter effects the resolution of
- * such a conflict:<ul>
- * <li> <code>true</code> - in this case the contents of this working copy are applied to
- * the underlying resource even though this working copy was created before
- * a subsequent change in the resource</li>
- * <li> <code>false</code> - in this case a <code>JavaModelException</code> is thrown</li>
- * </ul>
- *
- * @param force a flag to handle the cases when the contents of the original resource have changed
- * since this working copy was created
- * @param monitor the given progress monitor
- * @exception JavaModelException if this working copy could not commit. Reasons include:
- * <ul>
- * <li> The original Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
- * <li> A <code>CoreException</code> occurred while updating an underlying resource
- * <li> This element is not a working copy (INVALID_ELEMENT_TYPES)
- * <li> A update conflict (described above) (UPDATE_CONFLICT)
- * </ul>
- */
- void commit(boolean force, IProgressMonitor monitor) throws JavaModelException;
-
- /**
- * Destroys this working copy, closing its buffer and discarding
- * its structure. Subsequent attempts to access non-handle information
- * for this working copy will result in <code>IJavaModelException</code>s. Has
- * no effect if this element is not a working copy.
- * <p>
- * If this working copy is shared, it is destroyed only when the number of calls to
- * <code>destroy()</code> is the same as the number of calls to <code>
- * getSharedWorkingCopy(IProgressMonitor, IBufferFactory)</code>.
- * A REMOVED IJavaElementDelta is then reported on this working copy.
- */
- void destroy();
-
- /**
- * Finds the shared working copy for this element, given a <code>IBuffer</code> factory.
- * If no working copy has been created for this element associated with this
- * buffer factory, returns <code>null</code>.
- * <p>
- * Users of this method must not destroy the resulting working copy.
- *
- * @param bufferFactory the given <code>IBuffer</code> factory
- * @return the found shared working copy for this element, <code>null</code> if none
- * @see IBufferFactory
- * @since 2.0
- */
- IJavaElement findSharedWorkingCopy(IBufferFactory bufferFactory);
-
- /**
- * Returns the original element the specified working copy element was created from,
- * or <code>null</code> if this is not a working copy element. This is a handle
- * only method, the returned element may or may not exist.
- *
- * @return the original element the specified working copy element was created from,
- * or <code>null</code> if this is not a working copy element
- */
- IJavaElement getOriginal(IJavaElement workingCopyElement);
-
- /**
- * Returns the original element this working copy was created from,
- * or <code>null</code> if this is not a working copy.
- *
- * @return the original element this working copy was created from,
- * or <code>null</code> if this is not a working copy
- */
- IJavaElement getOriginalElement();
-
- /**
- * Finds the elements in this compilation unit that correspond to
- * the given element.
- * An element A corresponds to an element B if:
- * <ul>
- * <li>A has the same element name as B.
- * <li>If A is a method, A must have the same number of arguments as
- * B and the simple names of the argument types must be equals.
- * <li>The parent of A corresponds to the parent of B recursively up to
- * their respective compilation units.
- * <li>A exists.
- * </ul>
- * Returns <code>null</code> if no such java elements can be found
- * or if the given element is not included in a compilation unit.
- *
- * @param element the given element
- * @return the found elements in this compilation unit that correspond to the given element
- * @since 2.0
- */
- IJavaElement[] findElements(IJavaElement element);
-
- /**
- * Finds the primary type of this compilation unit (i.e. the type with the same name as the
- * compilation unit), or <code>null</code> if no such a type exists.
- *
- * @return the found primary type of this compilation unit, or <code>null</code> if no such a type exists
- * @since 2.0
- */
- IType findPrimaryType();
-
- /**
- * Returns a shared working copy on this element using the given factory to create
- * the buffer, or this element if this element is already a working copy.
- * This API can only answer an already existing working copy if it is based on the same
- * original compilation unit AND was using the same buffer factory (i.e. as defined by <code>Object#equals</code>).
- * <p>
- * The life time of a shared working copy is as follows:
- * <ul>
- * <li>The first call to <code>getSharedWorkingCopy(...)</code> creates a new working copy for this
- * element</li>
- * <li>Subsequent calls increment an internal counter.</li>
- * <li>A call to <code>destroy()</code> decrements the internal counter.</li>
- * <li>When this counter is 0, the working copy is destroyed.
- * </ul>
- * So users of this method must destroy exactly once the working copy.
- * <p>
- * Note that the buffer factory will be used for the life time of this working copy, i.e. if the
- * working copy is closed then reopened, this factory will be used.
- * The buffer will be automatically initialized with the original's compilation unit content
- * upon creation.
- * <p>
- * When the shared working copy instance is created, an ADDED IJavaElementDelta is reported on this
- * working copy.
- *
- * @param monitor a progress monitor used to report progress while opening this compilation unit
- * or <code>null</code> if no progress should be reported
- * @param factory the factory that creates a buffer that is used to get the content of the working copy
- * or <code>null</code> if the internal factory should be used
- * @param problemRequestor a requestor which will get notified of problems detected during
- * reconciling as they are discovered. The requestor can be set to <code>null</code> indicating
- * that the client is not interested in problems.
- * @exception JavaModelException if the contents of this element can
- * not be determined. Reasons include:
- * <ul>
- * <li> This Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
- * </ul>
- * @return a shared working copy on this element using the given factory to create
- * the buffer, or this element if this element is already a working copy
- * @see IBufferFactory
- * @see IProblemRequestor
- * @since 2.0
- */
- IJavaElement getSharedWorkingCopy(
- IProgressMonitor monitor,
- IBufferFactory factory,
- IProblemRequestor problemRequestor)
- throws JavaModelException;
-
- /**
- * Returns a new working copy of this element if this element is not
- * a working copy, or this element if this element is already a working copy.
- *
- * Note: if intending to share a working copy amongst several clients, then
- * <code>#getSharedWorkingCopy</code> should be used instead.
- *
- * @exception JavaModelException if the contents of this element can
- * not be determined. Reasons include:
- * <ul>
- * <li> This Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
- * </ul>
- * @return a new working copy of this element if this element is not
- * a working copy, or this element if this element is already a working copy
- */
- IJavaElement getWorkingCopy() throws JavaModelException;
-
- /**
- * Returns a new working copy of this element using the given factory to create
- * the buffer, or this element if this element is already a working copy.
- * Note that this factory will be used for the life time of this working copy, i.e. if the
- * working copy is closed then reopened, this factory will be reused.
- * The buffer will be automatically initialized with the original's compilation unit content
- * upon creation.
- *
- * Note: if intending to share a working copy amongst several clients, then
- * <code>#getSharedWorkingCopy</code> should be used instead.
- *
- * @param monitor a progress monitor used to report progress while opening this compilation unit
- * or <code>null</code> if no progress should be reported
- * @param factory the factory that creates a buffer that is used to get the content of the working copy
- * or <code>null</code> if the internal factory should be used
- * @param problemRequestor a requestor which will get notified of problems detected during
- * reconciling as they are discovered. The requestor can be set to <code>null</code> indicating
- * that the client is not interested in problems.
- * @exception JavaModelException if the contents of this element can
- * not be determined. Reasons include:
- * <ul>
- * <li> This Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
- * </ul>
- * @return a new working copy of this element using the given factory to create
- * the buffer, or this element if this element is already a working copy
- * @since 2.0
- */
- IJavaElement getWorkingCopy(
- IProgressMonitor monitor,
- IBufferFactory factory,
- IProblemRequestor problemRequestor)
- throws JavaModelException;
-
- /**
- * Returns whether this working copy's original element's content
- * has not changed since the inception of this working copy.
- *
- * @return true if this working copy's original element's content
- * has not changed since the inception of this working copy, false otherwise
- */
- boolean isBasedOn(IResource resource);
-
- /**
- * Returns whether this element is a working copy.
- *
- * @return true if this element is a working copy, false otherwise
- */
- boolean isWorkingCopy();
-
- /**
- * Reconciles the contents of this working copy.
- * It performs the reconciliation by locally caching the contents of
- * the working copy, updating the contents, then creating a delta
- * over the cached contents and the new contents, and finally firing
- * this delta.
- * <p>
- * If the working copy hasn't changed, then no problem will be detected,
- * this is equivalent to <code>IWorkingCopy#reconcile(false, null)</code>.
- * <p>
- * Compilation problems found in the new contents are notified through the
- * <code>IProblemRequestor</code> interface which was passed at
- * creation, and no longer as transient markers. Therefore this API will
- * return <code>null</code>.
- * <p>
- * Note: It has been assumed that added inner types should
- * not generate change deltas. The implementation has been
- * modified to reflect this assumption.
- *
- * @exception JavaModelException if the contents of the original element
- * cannot be accessed. Reasons include:
- * <ul>
- * <li> The original Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
- * </ul>
- * @return <code>null</code>
- */
- IMarker[] reconcile() throws JavaModelException;
-
- /**
- * Reconciles the contents of this working copy.
- * It performs the reconciliation by locally caching the contents of
- * the working copy, updating the contents, then creating a delta
- * over the cached contents and the new contents, and finally firing
- * this delta.
- * <p>
- * The boolean argument allows to force problem detection even if the
- * working copy is already consistent.
- * <p>
- * Compilation problems found in the new contents are notified through the
- * <code>IProblemRequestor</code> interface which was passed at
- * creation, and no longer as transient markers. Therefore this API answers
- * nothing.
- * <p>
- * Note: It has been assumed that added inner types should
- * not generate change deltas. The implementation has been
- * modified to reflect this assumption.
- *
- * @param forceProblemDetection boolean indicating whether problem should be recomputed
- * even if the source hasn't changed.
- * @param monitor a progress monitor
- * @exception JavaModelException if the contents of the original element
- * cannot be accessed. Reasons include:
- * <ul>
- * <li> The original Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
- * </ul>
- * @since 2.0
- */
- void reconcile(boolean forceProblemDetection, IProgressMonitor monitor) throws JavaModelException;
-
- /**
- * Restores the contents of this working copy to the current contents of
- * this working copy's original element. Has no effect if this element
- * is not a working copy.
- *
- * <p>Note: This is the inverse of committing the content of the
- * working copy to the original element with <code>commit(boolean, IProgressMonitor)</code>.
- *
- * @exception JavaModelException if the contents of the original element
- * cannot be accessed. Reasons include:
- * <ul>
- * <li> The original Java element does not exist (ELEMENT_DOES_NOT_EXIST)</li>
- * </ul>
- */
- void restore() throws JavaModelException;
-}
\ No newline at end of file
git://secure.phpeclipse.com / phpeclipse.git / blobdiff