IfxUDTInput (informix-jdbc 4.10.16.2 API)

java.lang.Object
- com.informix.jdbc.IfxUDTInput

All Implemented Interfaces:

IfmxUDTSQLInput, SQLUDTInput, java.sql.SQLInput
```
public class IfxUDTInput
extends java.lang.Object
implements SQLUDTInput, IfmxUDTSQLInput
```
JDBC 2.0 A SQLInput stream contains a stream of values that represent an SQL structured or distinct type instance. The implementation is for UDTs and the data types are based on what's listed in public/mitypes.h

Field Summary

Fields
Modifier and Type	Field and Description
`protected byte[]`	`buf`
`protected IfxConnection`	`conn`
`protected int`	`currentPos`
`protected boolean`	`isNull`
`protected int`	`totalLength`
`protected Trace`	`trace`
`protected int`	`unreadLength`

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method and Description
`int`	`available()` Returns the number of bytes remaining in this input stream.
`protected void`	`checkLength(int len)`
`protected int`	`currentPosition()`
`boolean`	`getAutoAlignment()` Returns true if auto alignment is enabled and false if auto alignment has been disabled.
`int`	`getCurrentPosition()` Returns the current position in the input stream.
`IfxUDTInfo`	`getUDTInfo(int xid)` Get general information about opaque and distinct types and detailed information for complex types.
`IfxUDTInfo`	`getUDTInfo(java.lang.String name, java.lang.String owner)` Get general information about opaque and distinct types and detailed information for complex types.
`int`	`length()` Get the total length of the entire data stream.
`java.sql.Array`	`readArray()` Read an array from the stream.
`java.io.InputStream`	`readAsciiStream()` Return the next attribute in the stream as a stream of ASCII characters.
`java.math.BigDecimal`	`readBigDecimal()` Read the next attribute in the stream as a java.math.BigDecimal object.
`java.io.InputStream`	`readBinaryStream()` Return the next attribute in the stream as a stream of uninterpreted bytes.
`java.sql.Blob`	`readBlob()` Read a BLOB from the stream.
`boolean`	`readBoolean()` Read the next attribute in the stream as a Java boolean.
`byte`	`readByte()` Read the next attribute in the stream as a Java byte.
`byte[]`	`readBytes()` Read the next attribute in the stream as an array of bytes.
`byte[]`	`readBytes(int len)` Read the next attribute in the stream as an array of bytes.
`java.io.Reader`	`readCharacterStream()` Return the next attribute in the stream as a stream of Unicode characters.
`java.sql.Clob`	`readClob()` Read a CLOB from the stream.
`java.sql.Date`	`readDate()` Read the next attribute in the stream as a java.sql.Date object.
`double`	`readDouble()` Read the next attribute in the stream as a Java double.
`float`	`readFloat()` Read the next attribute in the stream as a Java float.
`int`	`readInt()` Read the next attribute in the stream as a Java int.
`Interval`	`readInterval()` Read the next attribute in the stream as an Interval object (IntervalYM or IntervalMF).
`long`	`readLong()` Read the next attribute in the stream as a Java long.
`long`	`readLongBigint()` Read the next attribute in the stream as a Java long.
`java.sql.NClob`	`readNClob()`
`java.lang.String`	`readNString()`
`java.lang.Object`	`readObject()` Return the datum at the head of the stream as a Java object.
`java.sql.Ref`	`readRef()` Read a REF(<structured-type>) from the stream.
`java.sql.RowId`	`readRowId()`
`short`	`readShort()` Read the next attribute in the stream as a Java short.
`java.sql.SQLXML`	`readSQLXML()`
`java.lang.String`	`readString()` Read the next attribute in the stream as a Java String.
`java.lang.String`	`readString(int len)` Read the next attribute in the stream as a Java String.
`java.lang.String`	`readString(int len, java.lang.String dbEnc)` Read the next attribute in the stream as a Java String.
`java.sql.Time`	`readTime()` Read the next attribute in the stream as a java.sql.Time object.
`java.sql.Timestamp`	`readTimestamp()` Read the next attribute in the stream as a java.sql.Timestamp object.
`java.net.URL`	`readURL()`
`protected void`	`reset()`
`void`	`setAutoAlignment(boolean value)` Enable or disable automatic alignment.
`void`	`setCurrentPosition(int position)` Resets the current position.
`void`	`skipBytes(int len)` Skips over and discards len bytes of data from the input stream.
`boolean`	`wasNull()`

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

Methods inherited from interface java.sql.SQLInput
readObject, readTime, wasNull

- Field Detail
  - conn
```
protected IfxConnection conn
```
  - isNull
```
protected boolean isNull
```
  - buf
```
protected byte[] buf
```
  - totalLength
```
protected int totalLength
```
  - unreadLength
```
protected int unreadLength
```
  - currentPos
```
protected int currentPos
```
  - trace
```
protected Trace trace
```
- Method Detail
  - length
```
public int length()
```
    Description copied from interface: SQLUDTInput
    
    Get the total length of the entire data stream.
    
    Specified by:
    
    length in interface IfmxUDTSQLInput
    
    Specified by:
    
    length in interface SQLUDTInput
    
    Returns:
    
    the total length.
  - readString
```
public java.lang.String readString()
                            throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java String. We can't use this method for UDT since we don't know the length. It's coming back as mi_char.
    
    Specified by:
    
    readString in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readByte
```
public byte readByte()
              throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java byte.
    
    Specified by:
    
    readByte in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readShort
```
public short readShort()
                throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java short.
    
    Specified by:
    
    readShort in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readInt
```
public int readInt()
            throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java int.
    
    Specified by:
    
    readInt in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readString
```
public java.lang.String readString(int len)
                            throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java String. We overloaded this method to read in a fix length of characters, from stream that uses default character encoding.
    
    Specified by:
    
    readString in interface IfmxUDTSQLInput
    
    Specified by:
    
    readString in interface SQLUDTInput
    
    Parameters:
    
    len - the maximum size of data to read in.
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readString
```
public java.lang.String readString(int len,
                                   java.lang.String dbEnc)
                            throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java String. We overloaded this method to read in a fix length of characters.
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readBoolean
```
public boolean readBoolean()
                    throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java boolean. Booleans are represented as int1 (char) in mitypes.h
    
    Specified by:
    
    readBoolean in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readLong
```
public long readLong()
              throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java long. int8 is transported as struct ifx_int8.
    
    Specified by:
    
    readLong in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readLongBigint
```
public long readLongBigint()
                    throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java long. bigint is transported as struct ifx_bigint.
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readFloat
```
public float readFloat()
                throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java float.
    
    Specified by:
    
    readFloat in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readDouble
```
public double readDouble()
                  throws java.sql.SQLException
```
    Read the next attribute in the stream as a Java double.
    
    Specified by:
    
    readDouble in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readBigDecimal
```
public java.math.BigDecimal readBigDecimal()
                                    throws java.sql.SQLException
```
    Read the next attribute in the stream as a java.math.BigDecimal object.
    
    Specified by:
    
    readBigDecimal in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readBytes
```
public byte[] readBytes()
                 throws java.sql.SQLException
```
    Read the next attribute in the stream as an array of bytes.
    
    Specified by:
    
    readBytes in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readBytes
```
public byte[] readBytes(int len)
                 throws java.sql.SQLException
```
    Read the next attribute in the stream as an array of bytes.
    
    Specified by:
    
    readBytes in interface IfmxUDTSQLInput
    
    Specified by:
    
    readBytes in interface SQLUDTInput
    
    Parameters:
    
    len - the maximum size of data to read in.
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readDate
```
public java.sql.Date readDate()
                       throws java.sql.SQLException
```
    Read the next attribute in the stream as a java.sql.Date object.
    
    Specified by:
    
    readDate in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readTimestamp
```
public java.sql.Timestamp readTimestamp()
                                 throws java.sql.SQLException
```
    Read the next attribute in the stream as a java.sql.Timestamp object. Timestamps are expected as mi_datetime defined in mitypes.h
    
    Specified by:
    
    readTimestamp in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readCharacterStream
```
public java.io.Reader readCharacterStream()
                                   throws java.sql.SQLException
```
    Return the next attribute in the stream as a stream of Unicode characters.
    
    Specified by:
    
    readCharacterStream in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readAsciiStream
```
public java.io.InputStream readAsciiStream()
                                    throws java.sql.SQLException
```
    Return the next attribute in the stream as a stream of ASCII characters.
    
    Specified by:
    
    readAsciiStream in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readBinaryStream
```
public java.io.InputStream readBinaryStream()
                                     throws java.sql.SQLException
```
    Return the next attribute in the stream as a stream of uninterpreted bytes.
    
    Specified by:
    
    readBinaryStream in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - readObject
```
public java.lang.Object readObject()
                            throws java.sql.SQLException
```
    Return the datum at the head of the stream as a Java object. 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, constructs an object of the appropriate class, and calls method SQLData.readSQL on that object, which reads additional data from the stream, using the protocol described for SQLData.readSQL.
    
    Specified by:
    
    readObject in interface java.sql.SQLInput
    
    Throws:
    
    java.sql.SQLException
  - readRef
```
public java.sql.Ref readRef()
                     throws java.sql.SQLException
```
    Read a REF(<structured-type>) from the stream.
    
    Specified by:
    
    readRef in interface java.sql.SQLInput
    
    Returns:
    
    an object representing data of an SQL REF Type
    
    Throws:
    
    java.sql.SQLException
  - readBlob
```
public java.sql.Blob readBlob()
                       throws java.sql.SQLException
```
    Read a BLOB from the stream.
    
    Specified by:
    
    readBlob in interface java.sql.SQLInput
    
    Returns:
    
    an object representing a BLOB
    
    Throws:
    
    java.sql.SQLException
  - readClob
```
public java.sql.Clob readClob()
                       throws java.sql.SQLException
```
    Read a CLOB from the stream.
    
    Specified by:
    
    readClob in interface java.sql.SQLInput
    
    Returns:
    
    an object representing a CLOB
    
    Throws:
    
    java.sql.SQLException
  - readArray
```
public java.sql.Array readArray()
                         throws java.sql.SQLException
```
    Read an array from the stream.
    
    Specified by:
    
    readArray in interface java.sql.SQLInput
    
    Returns:
    
    an object representing an SQL array
    
    Throws:
    
    java.sql.SQLException
  - readInterval
```
public Interval readInterval()
                      throws java.sql.SQLException
```
    Read the next attribute in the stream as an Interval object (IntervalYM or IntervalMF). Interval is mapped to mi_interval defined in mitypes.h and is stored in intrvl_t defined in datetime.h.
    
    Specified by:
    
    readInterval in interface IfmxUDTSQLInput
    
    Specified by:
    
    readInterval in interface SQLUDTInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - setAutoAlignment
```
public void setAutoAlignment(boolean value)
```
    Enable or disable automatic alignment. The default is that the driver automatically handles alignment between data fields.
    
    Specified by:
    
    setAutoAlignment in interface IfmxUDTSQLInput
    
    Parameters:
    
    value - = true then alignment should be handles automatically. If value = false then no alignment is done. It's the user's respon- sibility to call skipBytes(int) to handle alignment.
  - getAutoAlignment
```
public boolean getAutoAlignment()
```
    Returns true if auto alignment is enabled and false if auto alignment has been disabled.
    
    Specified by:
    
    getAutoAlignment in interface IfmxUDTSQLInput
    
    Returns:
    
    true if auto alignment is enabled.
  - skipBytes
```
public void skipBytes(int len)
               throws java.sql.SQLException
```
    Skips over and discards len bytes of data from the input stream. alignment has been disabled.
    
    Specified by:
    
    skipBytes in interface IfmxUDTSQLInput
    
    Parameters:
    
    len - Number of bytes to skip over and discard.
    
    Throws:
    
    java.sql.SQLException
  - getCurrentPosition
```
public int getCurrentPosition()
```
    Returns the current position in the input stream.
    
    Specified by:
    
    getCurrentPosition in interface IfmxUDTSQLInput
    
    Returns:
    
    Returns the current position.
  - setCurrentPosition
```
public void setCurrentPosition(int position)
                        throws java.sql.SQLException
```
    Resets the current position.
    
    Specified by:
    
    setCurrentPosition in interface IfmxUDTSQLInput
    
    Parameters:
    
    -
    
    Throws:
    
    java.sql.SQLException
  - available
```
public int available()
```
    Returns the number of bytes remaining in this input stream.
    
    Specified by:
    
    available in interface IfmxUDTSQLInput
    
    Returns:
    
    Returns the number of bytes remaining in this input stream.
  - getUDTInfo
```
public IfxUDTInfo getUDTInfo(int xid)
                      throws java.sql.SQLException
```
    Get general information about opaque and distinct types and detailed information for complex types. Calls IfmxConnection.getUDTInfo(int) param xid Is the extended id found in sysxtdtype system catalog.
    
    Specified by:
    
    getUDTInfo in interface IfmxUDTSQLInput
    
    Parameters:
    
    xid - Is the extended id found in sysxtdtype system catalog.
    
    Returns:
    
    Object of type IfxUDTInfo which contains all information about a user defined datatype
    
    Throws:
    
    java.sql.SQLException
  - getUDTInfo
```
public IfxUDTInfo getUDTInfo(java.lang.String name,
                             java.lang.String owner)
                      throws java.sql.SQLException
```
    Get general information about opaque and distinct types and detailed information for complex types. Calls IfmxConnection.getUDTInfo(String name, String owner)
    
    Specified by:
    
    getUDTInfo in interface IfmxUDTSQLInput
    
    Parameters:
    
    name - The data type name.
    
    owner - The owner of the data type (can be null).
    
    Returns:
    
    The detailed type information as an Informix IfxUDTInfo.
    
    Throws:
    
    java.sql.SQLException
  - readURL
```
public java.net.URL readURL()
                     throws java.sql.SQLException
```
    Specified by:
    
    readURL in interface java.sql.SQLInput
    
    Throws:
    
    java.sql.SQLException
  - readNClob
```
public java.sql.NClob readNClob()
                         throws java.sql.SQLException
```
    Specified by:
    
    readNClob in interface java.sql.SQLInput
    
    Throws:
    
    java.sql.SQLException
  - readNString
```
public java.lang.String readNString()
                             throws java.sql.SQLException
```
    Specified by:
    
    readNString in interface java.sql.SQLInput
    
    Throws:
    
    java.sql.SQLException
  - readRowId
```
public java.sql.RowId readRowId()
                         throws java.sql.SQLException
```
    Specified by:
    
    readRowId in interface java.sql.SQLInput
    
    Throws:
    
    java.sql.SQLException
  - readSQLXML
```
public java.sql.SQLXML readSQLXML()
                           throws java.sql.SQLException
```
    Specified by:
    
    readSQLXML in interface java.sql.SQLInput
    
    Throws:
    
    java.sql.SQLException
  - currentPosition
```
protected int currentPosition()
```
  - reset
```
protected void reset()
```
  - checkLength
```
protected void checkLength(int len)
                    throws java.sql.SQLException
```
    Throws:
    
    java.sql.SQLException
  - readTime
```
public java.sql.Time readTime()
                       throws java.sql.SQLException
```
    Read the next attribute in the stream as a java.sql.Time object. Time are mapped to mi_datetime as defined in mitypes.h
    
    Specified by:
    
    readTime in interface java.sql.SQLInput
    
    Returns:
    
    the attribute; if the value is SQL NULL, return null.
    
    Throws:
    
    java.sql.SQLException
  - wasNull
```
public boolean wasNull()
```
    Specified by:
    
    wasNull in interface java.sql.SQLInput
    
    Returns:
    
    true iff the most recently gotten SQL value was null.

Class IfxUDTInput

Field Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.sql.SQLInput

Field Detail

conn

isNull

buf

totalLength

unreadLength

currentPos

trace

Method Detail

length

readString

readByte

readShort

readInt

readString

readString

readBoolean

readLong

readLongBigint

readFloat

readDouble

readBigDecimal

readBytes

readBytes

readDate

readTimestamp

readCharacterStream

readAsciiStream

readBinaryStream

readObject

readRef

readBlob

readClob

readArray

readInterval

setAutoAlignment

getAutoAlignment

skipBytes

getCurrentPosition

setCurrentPosition

available

getUDTInfo

getUDTInfo

readURL

readNClob

readNString

readRowId

readSQLXML

currentPosition

reset

checkLength

readTime

wasNull