java.lang.Object
- com.fasterxml.aalto.in.AttributeCollector

```
public final class AttributeCollector
extends java.lang.Object
```
Object used by the tokenizer to collect and store information about attributes, specifically, names and values.

Field Summary

Fields
Modifier and Type	Field	Description
`private java.lang.String`	`_allAttrValues`	Concatenated String that contains all the attribute values for the element.
`private int`	`_attrCount`	Number of attributes currently held by this collector.
`protected int[]`	`_attrMap`	Int-based compact data structure that contains mapping from attribute names to attribute indexes in the main attribute name array.
`(package private) ReaderConfig`	`_config`
`private java.lang.String`	`_errorMsg`	For some errors, we'll have to temporarily store error message, to be thrown at a later point.
`protected int`	`_hashAreaSize`	Size of hash area in `_attrMap`; generally at least 20% more than number of attributes (`_attrCount`).
`private PName[]`	`_names`
`private boolean`	`_needToResetValues`	Flag used to indicate that all attribute values for an element have been parsed, and that next call to `startNewValue` should reset the value structures
`protected int`	`_spillAreaEnd`	Pointer to int slot right after last spill entry, in `_attrMap` array.
`private char[]`	`_valueBuffer`	Consequtive character array, in which attribute values are concatenated in
`private int[]`	`_valueOffsets`	Array that contains ending offsets of the values in the shared buffer.
`private static int`	`DEFAULT_BUFFER_LENGTH`	The default length of the value buffer is also chosen more to minimize overhead than to eliminate all need for resizing.
`private static int`	`DEFAULT_ENTRY_COUNT`	Let's guess that most of the time there won't be more than 12 attributes.
`private static int`	`INT_SPACE`

Constructor Summary

Constructors
Modifier Constructor Description

protected AttributeCollector(ReaderConfig cfg)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`private boolean`	`checkExpand(org.codehaus.stax2.typed.TypedArrayDecoder tad)`	Internal method used to see if we can expand the buffer that the array decoder has.
`char[]`	`continueValue()`
`byte[]`	`decodeBinaryValue(int index, org.codehaus.stax2.typed.Base64Variant v, org.codehaus.stax2.ri.typed.CharArrayBase64Decoder dec, XmlScanner scanner)`
`void`	`decodeValue(int index, org.codehaus.stax2.typed.TypedValueDecoder dec)`
`int`	`decodeValues(int index, org.codehaus.stax2.typed.TypedArrayDecoder dec, XmlScanner scanner)`
`private int`	`decodeValues(org.codehaus.stax2.typed.TypedArrayDecoder dec, char[] buf, int ptr, int end, XmlScanner scanner)`
`int`	`findIndex(java.lang.String nsUri, java.lang.String localName)`
`int`	`finishLastValue(int endingOffset)`	Method called after all attribute entries have been parsed, and thus the end of the last value in the buffer is known.
`int`	`finishLastValue2()`
`int`	`getCount()`
`java.lang.String`	`getErrorMsg()`
`PName`	`getName(int index)`
`javax.xml.namespace.QName`	`getQName(int index)`
`java.lang.String`	`getValue(int index)`
`java.lang.String`	`getValue(java.lang.String nsUri, java.lang.String localName)`
`private static boolean`	`isSpace(char c)`
`private void`	`noteDupAttr(int ix1, int ix2)`
`char[]`	`startNewValue(PName attrName, int currOffset)`	Method called by the parser right after attribute name has been parsed, but before value has been parsed.
`char[]`	`valueBufferFull()`	Method called by the owner, when the

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

- Field Detail
  - INT_SPACE
```
private static final int INT_SPACE
```
    See Also:
    
    Constant Field Values
  - DEFAULT_ENTRY_COUNT
```
private static final int DEFAULT_ENTRY_COUNT
```
    Let's guess that most of the time there won't be more than 12 attributes. Since the underlying buffer will be expanded as necessary, exact value is chosen to minimize overhead rather than eliminate any resizing.
    
    See Also:
    
    Constant Field Values
  - DEFAULT_BUFFER_LENGTH
```
private static final int DEFAULT_BUFFER_LENGTH
```
    The default length of the value buffer is also chosen more to minimize overhead than to eliminate all need for resizing.
    
    See Also:
    
    Constant Field Values
  - _config
```
final ReaderConfig _config
```
  - _attrCount
```
private int _attrCount
```
    Number of attributes currently held by this collector.
  - _names
```
private PName[] _names
```
  - _valueBuffer
```
private char[] _valueBuffer
```
    Consequtive character array, in which attribute values are concatenated in
  - _attrMap
```
protected int[] _attrMap
```
    Int-based compact data structure that contains mapping from attribute names to attribute indexes in the main attribute name array.
    Data structure contains two separate areas; main hash area (with size _hashAreaSize), and remaining spillover area that follows hash area up until (but not including) _spillAreaEnd index. Main hash area only contains indexes (index+1; 0 signifying empty slot) to actual attributes; spillover area has both hash and index for any spilled entry. Spilled entries are simply stored in order added, and need to be searched using linear search. In case of both primary hash hits and spills, eventual comparison with the local name needs to be done with actual name array.
  - _hashAreaSize
```
protected int _hashAreaSize
```
    Size of hash area in _attrMap; generally at least 20% more than number of attributes (_attrCount).
  - _spillAreaEnd
```
protected int _spillAreaEnd
```
    Pointer to int slot right after last spill entry, in _attrMap array.
  - _valueOffsets
```
private int[] _valueOffsets
```
    Array that contains ending offsets of the values in the shared buffer. Entries contain character offset after the end of the matching offset; so entry 0 for example contains starting offset of the entry 1.
  - _needToResetValues
```
private boolean _needToResetValues
```
    Flag used to indicate that all attribute values for an element have been parsed, and that next call to startNewValue should reset the value structures
  - _errorMsg
```
private java.lang.String _errorMsg
```
    For some errors, we'll have to temporarily store error message, to be thrown at a later point.
  - _allAttrValues
```
private java.lang.String _allAttrValues
```
    Concatenated String that contains all the attribute values for the element. Allows some buffer reuse, and should result in slight speed optimization, for elements with lots of attributes that are usually all (or none) accessed.
- Constructor Detail
  - AttributeCollector
```
protected AttributeCollector(ReaderConfig cfg)
```
- Method Detail
  - startNewValue
```
public char[] startNewValue(PName attrName,
                            int currOffset)
```
    Method called by the parser right after attribute name has been parsed, but before value has been parsed.
    
    Returns:
    
    Underlying character buffer to use for storing attribute value characters
  - continueValue
```
public char[] continueValue()
```
  - finishLastValue
```
public final int finishLastValue(int endingOffset)
```
    Method called after all attribute entries have been parsed, and thus the end of the last value in the buffer is known.
    
    Returns:
    
    Number of attributes collected
  - finishLastValue2
```
public final int finishLastValue2()
```
  - valueBufferFull
```
public char[] valueBufferFull()
```
    Method called by the owner, when the
  - getCount
```
public final int getCount()
```
  - getName
```
public final PName getName(int index)
```
  - getQName
```
public final javax.xml.namespace.QName getQName(int index)
```
  - getValue
```
public java.lang.String getValue(int index)
```
  - getValue
```
public java.lang.String getValue(java.lang.String nsUri,
                                 java.lang.String localName)
```
  - findIndex
```
public int findIndex(java.lang.String nsUri,
                     java.lang.String localName)
```
  - getErrorMsg
```
public java.lang.String getErrorMsg()
```
  - decodeValue
```
public final void decodeValue(int index,
                              org.codehaus.stax2.typed.TypedValueDecoder dec)
                       throws java.lang.IllegalArgumentException
```
    Throws:
    
    java.lang.IllegalArgumentException
  - decodeValues
```
public final int decodeValues(int index,
                              org.codehaus.stax2.typed.TypedArrayDecoder dec,
                              XmlScanner scanner)
                       throws javax.xml.stream.XMLStreamException
```
    Throws:
    
    javax.xml.stream.XMLStreamException
  - decodeValues
```
private final int decodeValues(org.codehaus.stax2.typed.TypedArrayDecoder dec,
                               char[] buf,
                               int ptr,
                               int end,
                               XmlScanner scanner)
                        throws javax.xml.stream.XMLStreamException
```
    Throws:
    
    javax.xml.stream.XMLStreamException
  - decodeBinaryValue
```
public byte[] decodeBinaryValue(int index,
                                org.codehaus.stax2.typed.Base64Variant v,
                                org.codehaus.stax2.ri.typed.CharArrayBase64Decoder dec,
                                XmlScanner scanner)
                         throws javax.xml.stream.XMLStreamException
```
    Throws:
    
    javax.xml.stream.XMLStreamException
  - isSpace
```
private static final boolean isSpace(char c)
```
  - checkExpand
```
private final boolean checkExpand(org.codehaus.stax2.typed.TypedArrayDecoder tad)
```
    Internal method used to see if we can expand the buffer that the array decoder has. Bit messy, but simpler than having separately typed instances; and called rarely so that performance downside of instanceof is irrelevant.
  - noteDupAttr
```
private void noteDupAttr(int ix1,
                         int ix2)
```

Class AttributeCollector

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

INT_SPACE

DEFAULT_ENTRY_COUNT

DEFAULT_BUFFER_LENGTH

_config

_attrCount

_names

_valueBuffer

_attrMap

_hashAreaSize

_spillAreaEnd

_valueOffsets

_needToResetValues

_errorMsg

_allAttrValues

Constructor Detail

AttributeCollector

Method Detail

startNewValue

continueValue

finishLastValue

finishLastValue2

valueBufferFull

getCount

getName

getQName

getValue

getValue

findIndex

getErrorMsg

decodeValue

decodeValues

decodeValues

decodeBinaryValue

isSpace

checkExpand

noteDupAttr