Example usage for org.eclipse.jdt.core IBuffer getOwner

Introduction

In this page you can find the example usage for org.eclipse.jdt.core IBuffer getOwner.

Prototype

public IOpenable getOwner();

Source Link

Document

Returns the Java openable element owning of this buffer.

Usage

From source file:com.codenvy.ide.ext.java.server.internal.core.BufferCache.java

License:Open Source License

/**
 * Returns true if the buffer is successfully closed and
 * removed from the cache, otherwise false.
 *
 * <p>NOTE: this triggers an external removal of this buffer
 * by closing the buffer.//  w ww  .j  a  v  a  2  s.  c o  m
 */
protected boolean close(LRUCacheEntry entry) {
    IBuffer buffer = (IBuffer) entry.value;

    // prevent buffer that have unsaved changes or working copy buffer to be removed
    // see https://bugs.eclipse.org/bugs/show_bug.cgi?id=39311
    if (!((Openable) buffer.getOwner()).canBufferBeRemovedFromCache(buffer)) {
        return false;
    } else {
        ArrayList buffers = (ArrayList) this.buffersToClose.get();
        if (buffers == null) {
            buffers = new ArrayList();
            this.buffersToClose.set(buffers);
        }
        buffers.add(buffer);
        return true;
    }
}

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From source file:com.codenvy.ide.ext.java.server.internal.core.BufferManager.java

License:Open Source License

/**
 * Adds a buffer to the table of open buffers.
 *//*w  w  w  .j  av  a  2s . co m*/
protected void addBuffer(IBuffer buffer) {
    if (VERBOSE) {
        String owner = ((Openable) buffer.getOwner()).toStringWithAncestors();
        System.out.println("Adding buffer for " + owner); //$NON-NLS-1$
    }
    synchronized (this.openBuffers) {
        this.openBuffers.put(buffer.getOwner(), buffer);
    }
    // close buffers that were removed from the cache if space was needed
    this.openBuffers.closeBuffers();
    if (VERBOSE) {
        System.out.println("-> Buffer cache filling ratio = "
                + NumberFormat.getInstance().format(this.openBuffers.fillingRatio()) + "%"); //$NON-NLS-1$//$NON-NLS-2$
    }
}

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From source file:com.codenvy.ide.ext.java.server.internal.core.BufferManager.java

License:Open Source License

/**
 * Removes a buffer from the table of open buffers.
 *///from w  w w  .  ja v  a  2s.  c om
protected void removeBuffer(IBuffer buffer) {
    if (VERBOSE) {
        String owner = ((Openable) buffer.getOwner()).toStringWithAncestors();
        System.out.println("Removing buffer for " + owner); //$NON-NLS-1$
    }
    synchronized (this.openBuffers) {
        this.openBuffers.remove(buffer.getOwner());
    }
    // close buffers that were removed from the cache (should be only one)
    this.openBuffers.closeBuffers();
    if (VERBOSE) {
        System.out.println("-> Buffer cache filling ratio = " //$NON-NLS-1$
                + NumberFormat.getInstance().format(this.openBuffers.fillingRatio()) + "%"); //$NON-NLS-1$
    }
}

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From source file:org.eclipse.che.jdt.internal.core.Openable.java

License:Open Source License

/**
 * @see IOpenable/*from   w  w  w .  java  2s .c  om*/
 */
public boolean hasUnsavedChanges() throws JavaModelException {

    if (isReadOnly() || !isOpen()) {
        return false;
    }
    IBuffer buf = getBuffer();
    if (buf != null && buf.hasUnsavedChanges()) {
        return true;
    }
    // for package fragments, package fragment roots, and projects must check open buffers
    // to see if they have an child with unsaved changes
    int elementType = getElementType();
    if (elementType == PACKAGE_FRAGMENT || elementType == PACKAGE_FRAGMENT_ROOT || elementType == JAVA_PROJECT
            || elementType == JAVA_MODEL) { // fix for 1FWNMHH
        Enumeration openBuffers = getBufferManager().getOpenBuffers();
        while (openBuffers.hasMoreElements()) {
            IBuffer buffer = (IBuffer) openBuffers.nextElement();
            if (buffer.hasUnsavedChanges()) {
                IJavaElement owner = (IJavaElement) buffer.getOwner();
                if (isAncestorOf(owner)) {
                    return true;
                }
            }
        }
    }

    return false;
}

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