COSBase (com.pd4ml 4.1.1 API Documentation)

java.lang.Object
- com.pd4ml.pdf.cos.COSBase

All Implemented Interfaces:

COSObjectable

Direct Known Subclasses:

COSArray, COSBoolean, COSDictionary, COSName, COSNull, COSNumber, COSObject, COSString
```
public abstract class COSBase
extends java.lang.Object
implements COSObjectable
```
Base class for every object that can appear in the COS (Carousel Object Structure) layer of a PDF document: booleans, numbers, strings, names, arrays, dictionaries, streams, the null object and indirect references.
Instances are, by design, mutable containers (dictionaries/arrays) except for the handful of true value types (COSName, COSBoolean, COSNull) which are effectively immutable and safely shared/interned.

Constructor Summary

Constructors
Constructor Description

COSBase()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract <T> T`	`accept(ICOSVisitor<T> visitor)`
`COSBase`	`getCOSObject()`	COSObjectable identity: a raw COS node is its own COS representation.
`int`	`getGenerationNumber()`
`COSObjectKey`	`getKey()`
`long`	`getObjectNumber()`
`boolean`	`isDirect()`
`COSBase`	`resolve()`	Resolves through a `COSObject` indirection; every other COS type is already "resolved" and simply returns itself.
`void`	`setKey(COSObjectKey key)`	Records the indirect object identity this value was parsed as, so that a document writer can later decide whether to inline it or reference it with "n g R".

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - COSBase
```
public COSBase()
```
- Method Detail
  - getObjectNumber
```
public long getObjectNumber()
```
  - getGenerationNumber
```
public int getGenerationNumber()
```
  - isDirect
```
public boolean isDirect()
```
  - setKey
```
public void setKey(COSObjectKey key)
```
    Records the indirect object identity this value was parsed as, so that a document writer can later decide whether to inline it or reference it with "n g R".
  - getKey
```
public COSObjectKey getKey()
```
  - getCOSObject
```
public COSBase getCOSObject()
```
    COSObjectable identity: a raw COS node is its own COS representation.
    
    Specified by:
    
    getCOSObject in interface COSObjectable
  - resolve
```
public COSBase resolve()
```
    Resolves through a COSObject indirection; every other COS type is already "resolved" and simply returns itself. Parsers and the COSPathEvaluator call this after every navigation step so callers never have to special-case indirect references.
  - accept
```
public abstract <T> T accept(ICOSVisitor<T> visitor)
                      throws COSException
```
    Throws:
    
    COSException