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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.2) E13403-10 |
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java.lang.Object
oracle.javatools.buffer.CharArrayReadTextBuffer
public final class CharArrayReadTextBuffer
The CharArrayReadTextBuffer
is a wrapper implementation that provides a ReadTextBuffer
interface on top of a String
datasource. This class is for convenience so that a String
instance can be used where a ReadTextBuffer
is required, such as for the parser package.
This is declared package-private intentionally as it is an implementation, and not part of the published API. To create a new instance, use the TextBufferFactory
.
ReadTextBuffer
Field Summary |
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Fields inherited from interface oracle.javatools.buffer.ReadTextBuffer |
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LOCK_STATUS_NONE, LOCK_STATUS_READ, LOCK_STATUS_UNSUPPORTED, LOCK_STATUS_WRITE |
Constructor Summary | |
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CharArrayReadTextBuffer(char[] dataSource) Constructs a CharArrayReadTextBuffer to provide a ReadTextBuffer implementation around a String. |
Method Summary | |
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char |
getChar(int offset) Fetches the character from the given offset. |
char[] |
getChars(int offset, int length) Fetches a number of characters from the indicated offset in the buffer. |
int |
getLength() Fetches the number of characters in this buffer. |
int |
getLockStatus() Fetch the lock status for the current thread only. |
java.lang.String |
getString(int offset, int length) Fetches a number of characters from the indicated offset in the buffer and returns it as a String. |
void |
getText(int offset, int length, javax.swing.text.Segment segment) Fetches the text contained within the given section of the TextBuffer The Segment object is provided by the caller. |
void |
readLock() Attempts to acquire a read lock on this text buffer for the purposes of reading the buffer - this is a blocking call. |
void |
readUnlock() Releases a held read lock on this text buffer. |
boolean |
tryReadLock() Attempts to acquire a read lock on this buffer in a non-blocking manner. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public CharArrayReadTextBuffer(char[] dataSource)
CharArrayReadTextBuffer
to provide a ReadTextBuffer
implementation around a String. This is declared package-private intentionally as it is not part of the published API.
dataSource
- the String to use as the dataMethod Detail |
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public int getLength()
getLength
in interface ReadTextBuffer
public char getChar(int offset) throws java.lang.IndexOutOfBoundsException
getChar
in interface ReadTextBuffer
offset
- the offset in the buffer to get the character fromjava.lang.IndexOutOfBoundsException
- if offset is invalidpublic char[] getChars(int offset, int length) throws java.lang.IndexOutOfBoundsException
getChars
in interface ReadTextBuffer
offset
- the offset in the buffer to start fromlength
- number of characters to fetchjava.lang.IndexOutOfBoundsException
- if offset or length are invalidpublic java.lang.String getString(int offset, int length) throws java.lang.IndexOutOfBoundsException
getString
in interface ReadTextBuffer
offset
- the offset in the buffer to start fromlength
- number of characters to fetchjava.lang.IndexOutOfBoundsException
- if offset or length are invalidpublic void getText(int offset, int length, javax.swing.text.Segment segment) throws java.lang.IndexOutOfBoundsException
TextBuffer
The Segment
object is provided by the caller.getText
in interface ReadTextBuffer
offset
- the offset into the buffer representing the desired start of the data >= 0length
- the length of the desired data >= 0segment
- the caller's Segment object to return the data injava.lang.IndexOutOfBoundsException
Document.getText(int, int)
public void readLock()
readLock
in interface ReadTextBuffer
TextBuffer.getLineMap()
, TextBuffer.writeLock()
public boolean tryReadLock()
tryReadLock
in interface ReadTextBuffer
ReadTextBuffer.readLock()
public void readUnlock()
readUnlock
in interface ReadTextBuffer
public int getLockStatus()
getLockStatus
in interface ReadTextBuffer
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Oracle Fusion Middleware Java API Reference for Oracle Extension SDK Reference 11g Release 1 (11.1.1.7.2) E13403-10 |
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