public class ByteArrayStorage implements IStorage {
    private byte bytes[];
    public ByteArrayStorage(byte bytes_[]) {
        bytes = bytes_;
    }
    
    @Override
    public InputStream getContents() throws CoreException {
        return new ByteArrayInputStream( bytes );
    }

    @Override
    public IPath getFullPath() {
        return null;
    }

    @Override
    public String getName() {
        return "Bytes";
    }

    @Override
    public boolean isReadOnly() {
        return true;
    }

    @Override
    public Object getAdapter(Class adapter) {
        return null;
    }

}

public class ByteArrayStorageEditorInput implements IStorageEditorInput {

    private ByteArrayStorage store;
    
    public ByteArrayStorageEditorInput( byte bytes[] ) {
        store = new ByteArrayStorage( bytes );
    }
    @Override
    public IStorage getStorage() throws CoreException {
        return store;
    }

    @Override
    public boolean exists() {
        return false;
    }

    @Override
    public ImageDescriptor getImageDescriptor() {
        return null;
    }

    @Override
    public String getName() {
        return store.getName();
    }

    @Override
    public IPersistableElement getPersistable() {
        return null;
    }

    @Override
    public String getToolTipText() {
        return store.getName();
    }

    @Override
    public Object getAdapter(Class adapter) {
        return null;
    }
}