|
Préférences
Moteurs de recherche
|
||||||||||||||||||||||||||||||||||||||||||||||||||||||||
JavaTM 2 Platform Std. Ed. v1.6.0
java.sql
|
Method Summary | |
---|---|
Array |
readArray()
Reads an SQL ARRAY value from the stream and returns it as an
Array object in the Java programming language. |
InputStream |
readAsciiStream()
Reads the next attribute in the stream and returns it as a stream of ASCII characters. |
BigDecimal |
readBigDecimal()
Reads the next attribute in the stream and returns it as a java.math.BigDecimal
object in the Java programming language. |
InputStream |
readBinaryStream()
Reads the next attribute in the stream and returns it as a stream of uninterpreted bytes. |
Blob |
readBlob()
Reads an SQL BLOB value from the stream and returns it as a
Blob object in the Java programming language. |
boolean |
readBoolean()
Reads the next attribute in the stream and returns it as a boolean
in the Java programming language. |
byte |
readByte()
Reads the next attribute in the stream and returns it as a byte
in the Java programming language. |
byte[] |
readBytes()
Reads the next attribute in the stream and returns it as an array of bytes in the Java programming language. |
Reader |
readCharacterStream()
Reads the next attribute in the stream and returns it as a stream of Unicode characters. |
Clob |
readClob()
Reads an SQL CLOB value from the stream and returns it as a
Clob object in the Java programming language. |
Date |
readDate()
Reads the next attribute in the stream and returns it as a java.sql.Date object. |
double |
readDouble()
Reads the next attribute in the stream and returns it as a double
in the Java programming language. |
float |
readFloat()
Reads the next attribute in the stream and returns it as a float
in the Java programming language. |
int |
readInt()
Reads the next attribute in the stream and returns it as an int
in the Java programming language. |
long |
readLong()
Reads the next attribute in the stream and returns it as a long
in the Java programming language. |
NClob |
readNClob()
Reads an SQL NCLOB value from the stream and returns it as a
NClob object in the Java programming language. |
String |
readNString()
Reads the next attribute in the stream and returns it as a String
in the Java programming language. |
Object |
readObject()
Reads the datum at the head of the stream and returns it as an Object in the Java programming language. |
Ref |
readRef()
Reads an SQL REF value from the stream and returns it as a
Ref object in the Java programming language. |
RowId |
readRowId()
Reads an SQL ROWID value from the stream and returns it as a
RowId object in the Java programming language. |
short |
readShort()
Reads the next attribute in the stream and returns it as a short
in the Java programming language. |
SQLXML |
readSQLXML()
Reads an SQL XML value from the stream and returns it as a
SQLXML object in the Java programming language. |
String |
readString()
Reads the next attribute in the stream and returns it as a String
in the Java programming language. |
Time |
readTime()
Reads the next attribute in the stream and returns it as a java.sql.Time object. |
Timestamp |
readTimestamp()
Reads the next attribute in the stream and returns it as a java.sql.Timestamp object. |
URL |
readURL()
Reads an SQL DATALINK value from the stream and returns it as a
java.net.URL object in the Java programming language. |
boolean |
wasNull()
Retrieves whether the last value read was SQL NULL . |
Method Detail |
---|
String readString() throws SQLException
String
in the Java programming language.
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodboolean readBoolean() throws SQLException
boolean
in the Java programming language.
NULL
, returns false
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodbyte readByte() throws SQLException
byte
in the Java programming language.
NULL
, returns 0
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodshort readShort() throws SQLException
short
in the Java programming language.
NULL
, returns 0
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodint readInt() throws SQLException
int
in the Java programming language.
NULL
, returns 0
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodlong readLong() throws SQLException
long
in the Java programming language.
NULL
, returns 0
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodfloat readFloat() throws SQLException
float
in the Java programming language.
NULL
, returns 0
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methoddouble readDouble() throws SQLException
double
in the Java programming language.
NULL
, returns 0
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodBigDecimal readBigDecimal() throws SQLException
java.math.BigDecimal
object in the Java programming language.
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodbyte[] readBytes() throws SQLException
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodDate readDate() throws SQLException
java.sql.Date
object.
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodTime readTime() throws SQLException
java.sql.Time
object.
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodTimestamp readTimestamp() throws SQLException
java.sql.Timestamp
object.
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodReader readCharacterStream() throws SQLException
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodInputStream readAsciiStream() throws SQLException
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodInputStream readBinaryStream() throws SQLException
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodObject readObject() throws SQLException
Object
in the Java programming language. The
actual type of the object returned is determined by the default type
mapping, and any customizations present in this stream's type map.
A type map is registered with the stream by the JDBC driver before the stream is passed to the application.
When the datum at the head of the stream is an SQL NULL
,
the method returns null
. If the datum is an SQL structured or distinct
type, it determines the SQL type of the datum at the head of the stream.
If the stream's type map has an entry for that SQL type, the driver
constructs an object of the appropriate class and calls the method
SQLData.readSQL
on that object, which reads additional data from the
stream, using the protocol described for that method.
Object
in the
Java programming language;null
if the datum is SQL NULL
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodRef readRef() throws SQLException
REF
value from the stream and returns it as a
Ref
object in the Java programming language.
Ref
object representing the SQL REF
value
at the head of the stream; null
if the value read is
SQL NULL
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodBlob readBlob() throws SQLException
BLOB
value from the stream and returns it as a
Blob
object in the Java programming language.
Blob
object representing data of the SQL BLOB
value
at the head of the stream; null
if the value read is
SQL NULL
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodClob readClob() throws SQLException
CLOB
value from the stream and returns it as a
Clob
object in the Java programming language.
Clob
object representing data of the SQL CLOB
value
at the head of the stream; null
if the value read is
SQL NULL
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodArray readArray() throws SQLException
ARRAY
value from the stream and returns it as an
Array
object in the Java programming language.
Array
object representing data of the SQL
ARRAY
value at the head of the stream; null
if the value read is SQL NULL
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodboolean wasNull() throws SQLException
NULL
.
true
if the most recently read SQL value was SQL
NULL
; false
otherwise
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodURL readURL() throws SQLException
DATALINK
value from the stream and returns it as a
java.net.URL
object in the Java programming language.
java.net.URL
object.
SQLException
- if a database access error occurs,
or if a URL is malformed
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodNClob readNClob() throws SQLException
NCLOB
value from the stream and returns it as a
NClob
object in the Java programming language.
NClob
object representing data of the SQL NCLOB
value
at the head of the stream; null
if the value read is
SQL NULL
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodString readNString() throws SQLException
String
in the Java programming language. It is intended for use when
accessing NCHAR
,NVARCHAR
and LONGNVARCHAR
columns.
NULL
, returns null
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodSQLXML readSQLXML() throws SQLException
XML
value from the stream and returns it as a
SQLXML
object in the Java programming language.
SQLXML
object representing data of the SQL XML
value
at the head of the stream; null
if the value read is
SQL NULL
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this methodRowId readRowId() throws SQLException
ROWID
value from the stream and returns it as a
RowId
object in the Java programming language.
RowId
object representing data of the SQL ROWID
value
at the head of the stream; null
if the value read is
SQL NULL
SQLException
- if a database access error occurs
SQLFeatureNotSupportedException
- if the JDBC driver does not support
this method