Method numPages

src/java/simpledb/index/BTreeFile.java:163–166

Returns the number of pages in this BTreeFile.

()

	 * Returns the number of pages in this BTreeFile.
	 */
	public int numPages() {
		// we only ever write full pages
		return (int) ((f.length() - BTreeRootPtrPage.getPageSize())/ BufferPool.getPageSize());
	}

	/**
	 * Returns the index of the field that this B+ tree is keyed on