Bug 236083 [Doc] Copyright update
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTableViewer.java
}
		doClear(index);
	}
	/*
	 * (non-Javadoc)
	 *
	 * @see org.eclipse.jface.viewers.StructuredViewer#getRawChildren(java.lang.Object)
	 */
	protected Object[] getRawChildren(Object parent) {
		Assert.isTrue(!(getContentProvider() instanceof ILazyContentProvider),
				"Cannot get raw children with an ILazyContentProvider");
		return super.getRawChildren(parent);
	}
	/*
	 * (non-Javadoc)
	 *
	 * @see org.eclipse.jface.viewers.StructuredViewer#assertContentProviderType(org.eclipse.jface.viewers.IContentProvider)
	 */
	protected void assertContentProviderType(IContentProvider provider) {
		Assert.isTrue(provider instanceof IStructuredContentProvider
				|| provider instanceof ILazyContentProvider);
	}
	/**
	 * Searches the receiver's list starting at the first item (index 0) until
	 * an item is found that is equal to the argument, and returns the index of
	 * that item. If no item is found, returns -1.
	 *
	 * @param item
	 *            the search item
	 * @return the index of the item