UCode_CharStream (Apache Derby V10.14 Internals)

java.lang.Object
- org.apache.derby.impl.tools.ij.UCode_CharStream

All Implemented Interfaces:

org.apache.derby.impl.tools.ij.CharStream
```
public final class UCode_CharStream
extends java.lang.Object
implements org.apache.derby.impl.tools.ij.CharStream
```
An implementation of interface CharStream, where the stream is assumed to contain only Unicode characters.

Field Summary

Fields
Modifier and Type	Field	Description
`(package private) int`	`available`
`private int[]`	`bufcolumn`
`private char[]`	`buffer`
`private int[]`	`bufline`
`int`	`bufpos`
`(package private) int`	`bufsize`
`private int`	`column`
`private int`	`inBuf`
`private java.io.Reader`	`inputStream`
`private int`	`line`
`private int`	`maxNextCharInd`
`private char[]`	`nextCharBuf`
`private int`	`nextCharInd`
`private boolean`	`prevCharIsCR`
`private boolean`	`prevCharIsLF`
`static boolean`	`staticFlag`
`(package private) int`	`tokenBegin`

Constructor Summary

Constructors
Constructor	Description
`UCode_CharStream(java.io.InputStream dstream, int startline, int startcolumn)`
`UCode_CharStream(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)`
`UCode_CharStream(java.io.Reader dstream, int startline, int startcolumn)`
`UCode_CharStream(java.io.Reader dstream, int startline, int startcolumn, int buffersize)`

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`void`	`adjustBeginLineColumn(int newLine, int newCol)`	Method to adjust line and column numbers for the start of a token.
`void`	`backup(int amount)`
`char`	`BeginToken()`
`void`	`Done()`
`private void`	`ExpandBuff(boolean wrapAround)`
`private void`	`FillBuff()`
`int`	`getBeginColumn()`
`int`	`getBeginLine()`
`int`	`getColumn()`	Deprecated.
`int`	`getEndColumn()`
`int`	`getEndLine()`
`java.lang.String`	`GetImage()`
`int`	`getLine()`	Deprecated.
`char[]`	`GetSuffix(int len)`
`char`	`readChar()`
`private char`	`ReadChar()`
`void`	`ReInit(java.io.InputStream dstream, int startline, int startcolumn)`
`void`	`ReInit(java.io.InputStream dstream, int startline, int startcolumn, int buffersize)`
`void`	`ReInit(java.io.Reader dstream, int startline, int startcolumn)`
`void`	`ReInit(java.io.Reader dstream, int startline, int startcolumn, int buffersize)`
`private void`	`UpdateLineColumn(char c)`

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

Field Detail

staticFlag
```
public static final boolean staticFlag
```
See Also:

Constant Field Values

bufpos
```
public int bufpos
```

bufsize
```
int bufsize
```

available
```
int available
```

tokenBegin
```
int tokenBegin
```

bufline
```
private int[] bufline
```

bufcolumn
```
private int[] bufcolumn
```

column
```
private int column
```

line
```
private int line
```

prevCharIsCR
```
private boolean prevCharIsCR
```

prevCharIsLF
```
private boolean prevCharIsLF
```

inputStream
```
private java.io.Reader inputStream
```

nextCharBuf
```
private char[] nextCharBuf
```

buffer
```
private char[] buffer
```

maxNextCharInd
```
private int maxNextCharInd
```

nextCharInd
```
private int nextCharInd
```

inBuf
```
private int inBuf
```

Constructor Detail

UCode_CharStream

public UCode_CharStream(java.io.Reader dstream,
                        int startline,
                        int startcolumn,
                        int buffersize)

UCode_CharStream

public UCode_CharStream(java.io.Reader dstream,
                        int startline,
                        int startcolumn)

UCode_CharStream

public UCode_CharStream(java.io.InputStream dstream,
                        int startline,
                        int startcolumn,
                        int buffersize)

UCode_CharStream

public UCode_CharStream(java.io.InputStream dstream,
                        int startline,
                        int startcolumn)

Method Detail

ExpandBuff

private final void ExpandBuff(boolean wrapAround)

FillBuff

private final void FillBuff()
                     throws java.io.IOException

Throws:: java.io.IOException

ReadChar

private final char ReadChar()
                     throws java.io.IOException

Throws:: java.io.IOException

BeginToken
```
public char BeginToken()
                throws java.io.IOException
```
Specified by:

BeginToken in interface org.apache.derby.impl.tools.ij.CharStream

Throws:

java.io.IOException

UpdateLineColumn

private final void UpdateLineColumn(char c)

readChar
```
public final char readChar()
                    throws java.io.IOException
```
Specified by:

readChar in interface org.apache.derby.impl.tools.ij.CharStream

Throws:

java.io.IOException

getColumn
```
public final int getColumn()
```
Deprecated.

Specified by:

getColumn in interface org.apache.derby.impl.tools.ij.CharStream

See Also:

getEndColumn()

getLine
```
public final int getLine()
```
Deprecated.

Specified by:

getLine in interface org.apache.derby.impl.tools.ij.CharStream

See Also:

getEndLine()

getEndColumn
```
public final int getEndColumn()
```
Specified by:

getEndColumn in interface org.apache.derby.impl.tools.ij.CharStream

getEndLine
```
public final int getEndLine()
```
Specified by:

getEndLine in interface org.apache.derby.impl.tools.ij.CharStream

getBeginColumn
```
public final int getBeginColumn()
```
Specified by:

getBeginColumn in interface org.apache.derby.impl.tools.ij.CharStream

getBeginLine
```
public final int getBeginLine()
```
Specified by:

getBeginLine in interface org.apache.derby.impl.tools.ij.CharStream

backup
```
public final void backup(int amount)
```
Specified by:

backup in interface org.apache.derby.impl.tools.ij.CharStream

ReInit

public void ReInit(java.io.Reader dstream,
                   int startline,
                   int startcolumn,
                   int buffersize)

ReInit

public void ReInit(java.io.Reader dstream,
                   int startline,
                   int startcolumn)

ReInit

public void ReInit(java.io.InputStream dstream,
                   int startline,
                   int startcolumn,
                   int buffersize)

ReInit

public void ReInit(java.io.InputStream dstream,
                   int startline,
                   int startcolumn)

GetImage
```
public final java.lang.String GetImage()
```
Specified by:

GetImage in interface org.apache.derby.impl.tools.ij.CharStream

GetSuffix
```
public final char[] GetSuffix(int len)
```
Specified by:

GetSuffix in interface org.apache.derby.impl.tools.ij.CharStream

Done
```
public void Done()
```
Specified by:

Done in interface org.apache.derby.impl.tools.ij.CharStream

adjustBeginLineColumn

public void adjustBeginLineColumn(int newLine,
                                  int newCol)

Method to adjust line and column numbers for the start of a token.

Class UCode_CharStream

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

staticFlag

bufpos

bufsize

available

tokenBegin

bufline

bufcolumn

column

line

prevCharIsCR

prevCharIsLF

inputStream

nextCharBuf

buffer

maxNextCharInd

nextCharInd

inBuf

Constructor Detail

UCode_CharStream

UCode_CharStream

UCode_CharStream

UCode_CharStream

Method Detail

ExpandBuff

FillBuff

ReadChar

BeginToken

UpdateLineColumn

readChar

getColumn

getLine

getEndColumn

getEndLine

getBeginColumn

getBeginLine

backup

ReInit

ReInit

ReInit

ReInit

GetImage

GetSuffix

Done

adjustBeginLineColumn