## Uses of Class
org.apache.pdfbox.cos.COSObjectKey

Packages that use COSObjectKey
org.apache.pdfbox.cos: These are the low level objects that make up a PDF document.
org.apache.pdfbox.pdfparser: The pdfparser package contains classes to parse PDF documents and objects within the document.
org.apache.pdfbox.pdfwriter: This is the persistence layer used to write the PDFBox documents to a stream.

### Uses of COSObjectKey in org.apache.pdfbox.cos

Methods in org.apache.pdfbox.cos that return COSObjectKey
`COSObjectKey` COSDocument.`getKey(COSBase object)` Returns the COSObjectKey for a given COS object, or null if there is none.

Methods in org.apache.pdfbox.cos that return types with arguments of type COSObjectKey
`Map<COSObjectKey,Long>` COSDocument.`getXrefTable()` Returns the xrefTable which is a mapping of ObjectKeys to byte offsets in the file.

Methods in org.apache.pdfbox.cos with parameters of type COSObjectKey
`int` COSObjectKey.`compareTo(COSObjectKey other)`
`COSObject` COSDocument.`getObjectFromPool(COSObjectKey key)` This will get an object from the pool.
`COSObject` COSDocument.`removeObject(COSObjectKey key)` Removes an object from the object pool.

Method parameters in org.apache.pdfbox.cos with type arguments of type COSObjectKey
`void` COSDocument.`addXRefTable(Map<COSObjectKey,Long> xrefTableValues)` Populate XRef HashMap with given values.

### Uses of COSObjectKey in org.apache.pdfbox.pdfparser

Methods in org.apache.pdfbox.pdfparser that return types with arguments of type COSObjectKey
`Map<COSObjectKey,Long>` XrefTrailerResolver.`getXrefTable()` Gets the resolved xref table.

Methods in org.apache.pdfbox.pdfparser with parameters of type COSObjectKey
`void` XrefTrailerResolver.`setXRef(COSObjectKey objKey, long offset)` Populate XRef HashMap of current XRef object.

### Uses of COSObjectKey in org.apache.pdfbox.pdfwriter

Methods in org.apache.pdfbox.pdfwriter that return COSObjectKey
`COSObjectKey` COSWriterXRefEntry.`getKey()` This will get the Object key.

Methods in org.apache.pdfbox.pdfwriter that return types with arguments of type COSObjectKey
`Map<COSBase,COSObjectKey>` COSWriter.`getObjectKeys()` This will get all available object keys.

Constructors in org.apache.pdfbox.pdfwriter with parameters of type COSObjectKey
Constructor and Description
`COSWriterXRefEntry(long start, COSBase obj, COSObjectKey keyValue)` Constructor.