| java.lang.Object
 org.apache.derby.impl.drda.DRDAString
| DRDAString | | final class DRDAString (Code) | | This class provides functionality for reusing buffers and strings
when parsing DRDA packets. A byte array representing a string is
stored internally. When the string is requested as a
String object, the byte array is converted to a
string, and the string is cached to avoid unnecessary conversion
later.
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| Method Summary | |
| public byte[] | getBytes()
Return the internal byte array. | | public int | length()
Return the length in bytes of the internal string
representation. | | public void | setBytes(byte[] src, int offset, int size)
Modify the internal byte buffer. | | public String | toString()
Convert the internal byte array to a string. | | public boolean | wasModified()
Check whether the contents of the DRDAString were
modified in the previous call to setBytes(). |
| DRDAString | | DRDAString(CcsidManager m)(Code) | | Create a new DRDAString instance.
Parameters:
m - a CcsidManager value specifyingwhich encoding is used |
| getBytes | | public byte[] getBytes()(Code) | | Return the internal byte array. The returned array should not
be modified, as it is used internally in
DRDAString. The value of the array might be
modified by subsequent calls to
DRDAString.setBytes().
internal buffer |
| length | | public int length()(Code) | | Return the length in bytes of the internal string
representation.
length of internal representation |
| setBytes | | public void setBytes(byte[] src, int offset, int size)(Code) | | Modify the internal byte buffer. If the new data is equal to
the old data, the cached values are not cleared.
Parameters:
src - the new bytes
Parameters:
offset - start offset
Parameters:
size - number of bytes to use |
| toString | | public String toString()(Code) | | Convert the internal byte array to a string. The string value
is cached.
a String value |
| wasModified | | public boolean wasModified()(Code) | | Check whether the contents of the DRDAString were
modified in the previous call to setBytes().
true if the contents were modified |
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