com.ibm.as400.access
Class AS400JDBCSQLXML
- java.lang.Object
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- com.ibm.as400.access.AS400JDBCSQLXML
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- All Implemented Interfaces:
- java.io.Serializable
- Direct Known Subclasses:
- AS400JDBCSQLXMLLocator
public class AS400JDBCSQLXML extends java.lang.Object implements java.io.Serializable
This class provides the object interface for using XML data through JDBC. The mapping in the Java programming language for the SQL XML type. XML is a built-in type that stores an XML value as a column value in a row of a database table. The SQLXML interface provides methods for accessing the XML value as a String, a Reader or Writer, or as a Stream. This class returns the data as an XML type. The actual type on the host may vary. Instances of this class are created by AS400JDBCConnection. This class should not be used if JDK 1.6 is not in use.- See Also:
- Serialized Form
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Field Summary
Fields Modifier and Type Field and Description protected boolean
isXML_
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Constructor Summary
Constructors Modifier Constructor and Description protected
AS400JDBCSQLXML()
Constructs an AS400JDBCSQLXML object.
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Method Summary
Methods Modifier and Type Method and Description void
free()
This method frees the object and releases the the resources that it holds.java.io.InputStream
getBinaryStream()
Retrieves the XML value designated by this SQLXML instance as a stream.java.io.Reader
getCharacterStream()
Retrieves the XML value designated by this SQLXML instance as a java.io.Reader object.java.lang.String
getString()
Retrieves a string representation of the XML value designated by thisSQLXML
object.java.io.OutputStream
setBinaryStream()
Retrieves a stream that can be used to write the XML value that this SQLXML instance represents.java.io.Writer
setCharacterStream()
Retrieves a Writer to be used to write the XML value that this SQLXML instance represents.void
setString(java.lang.String str)
Writes the given Java String to the XML value that thisSQLXML
object designates.
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Constructor Detail
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AS400JDBCSQLXML
protected AS400JDBCSQLXML()
Constructs an AS400JDBCSQLXML object. This is only a dummy constructor used by subclasses.
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Method Detail
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getCharacterStream
public java.io.Reader getCharacterStream() throws java.sql.SQLException
Retrieves the XML value designated by this SQLXML instance as a java.io.Reader object. The format of this stream is defined by org.xml.sax.InputSource, where the characters in the stream represent the Unicode code points for XML according to section 2 and appendix B of the XML 1.0 specification. Although an encoding declaration other than Unicode may be present, the encoding of the stream is Unicode. The behavior of this method is the same as ResultSet.getCharacterStream() when the designated column of the ResultSet has a type java.sql.Types of SQLXML.The SQL XML object becomes not readable when this method is called and may also become not writable depending on implementation.
- Returns:
- a stream containing the XML data.
- Throws:
java.sql.SQLException
- if there is an error processing the XML value. The getCause() method of the exception may provide a more detailed exception, for example, if the stream does not contain valid characters. An exception is thrown if the state is not readable.
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getString
public java.lang.String getString() throws java.sql.SQLException
Retrieves a string representation of the XML value designated by thisSQLXML
object.- Returns:
- a String that is the string representation of the XML value
- Throws:
java.sql.SQLException
- if there is an error accessing the XML value
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setString
public void setString(java.lang.String str) throws java.sql.SQLException
Writes the given Java String to the XML value that thisSQLXML
object designates.- Parameters:
str
- the string to be written to the XML value that thisSQLXML
designates- Throws:
java.sql.SQLException
- if there is an error accessing the XML value
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getBinaryStream
public java.io.InputStream getBinaryStream() throws java.sql.SQLException
Retrieves the XML value designated by this SQLXML instance as a stream.- Returns:
- a stream containing the XML data.
- Throws:
java.sql.SQLException
- if there is an error processing the XML value. An exception is thrown if the state is not readable.
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setBinaryStream
public java.io.OutputStream setBinaryStream() throws java.sql.SQLException
Retrieves a stream that can be used to write the XML value that this SQLXML instance represents.- Returns:
- a stream to which data can be written.
- Throws:
java.sql.SQLException
- if there is an error processing the XML value. An exception is thrown if the state is not writable.
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setCharacterStream
public java.io.Writer setCharacterStream() throws java.sql.SQLException
Retrieves a Writer to be used to write the XML value that this SQLXML instance represents.- Returns:
- a stream to which data can be written.
- Throws:
java.sql.SQLException
- if there is an error processing the XML value. The getCause() method of the exception may provide a more detailed exception, for example, if the stream does not contain valid characters. An exception is thrown if the state is not writable.
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free
public void free() throws java.sql.SQLException
This method frees the object and releases the the resources that it holds. The object is invalid once thefree
method is called. Iffree
is called multiple times, the subsequent calls tofree
are treated as a no-op.- Throws:
java.sql.SQLException
- If a database error occurs. if an error occurs releasing the Clob's resources
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