RowData

java.lang.Object
- com.ibm.as400.util.servlet.RowData

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ListRowData, RecordListRowData, ResourceListRowData, SQLResultSetRowData
```
public abstract class RowData
extends java.lang.Object
implements java.io.Serializable
```
The RowData class defines a representation for describing and accessing a list of data.
The RowData object maintains a position in the list pointing to its current row of data. The initial position is before the first row in the list. Row indexes are numbered starting with 0.
The number, types, and properties of the list's columns are provided by the RowMetaData object returned by the getMetaData method.
Individual data objects in the current row can have properties, or a list of objects, that can be associated with the data. Properties can be set with the setObjectProperties method.
RowData objects generate the following events:
- PropertyChangeEvent
- VetoableChangeEvent
See Also:
Serialized Form

Field Summary

Fields
Modifier and Type Field and Description

protected java.util.Vector rowProperties_

protected java.util.Vector rows_

Fields
Modifier and Type	Field and Description
`protected java.util.Vector`	`rowProperties_`
`protected java.util.Vector`	`rows_`

Constructor Summary

Constructors
Constructor and Description

RowData()
Constructs a default RowData object.

Constructors
Constructor and Description
`RowData()` Constructs a default RowData object.

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`absolute(int rowIndex)` Sets the position to the specified rowIndex.
`void`	`addPropertyChangeListener(java.beans.PropertyChangeListener listener)` Adds a PropertyChangeListener.
`void`	`addVetoableChangeListener(java.beans.VetoableChangeListener listener)` Adds the VetoableChangeListener.
`void`	`afterLast()` Sets the position after the last row in the list.
`void`	`beforeFirst()` Sets the position before the first row in the list.
`boolean`	`first()` Sets the position to the first row in the list.
`int`	`getCurrentPosition()` Returns the current row position.
`abstract RowMetaData`	`getMetaData()` Returns the meta data.
`java.lang.Object`	`getObject(int columnIndex)` Returns the current row's column data specified at columnIndex.
`java.util.Vector`	`getObjectProperties(int columnIndex)` Returns the data object's property list at the specified columnIndex.
`java.util.Vector[]`	`getRowProperties()` Returns the current row's property list.
`boolean`	`isAfterLast()` Indicates whether the current position is after the last row in the list.
`boolean`	`isBeforeFirst()` Indicates whether the current position is before the first row in the list.
`boolean`	`isFirst()` Indicates whether the current position is the first row in the list.
`boolean`	`isLast()` Indicates whether the current position is the last row in the list.
`boolean`	`last()` Sets the position to the last row in the list.
`int`	`length()` Returns the number of rows in the list.
`boolean`	`next()` Sets the position to the next row in the list.
`boolean`	`previous()` Sets the position to the previous row in the list.
`boolean`	`relative(int numberOfRows)` Sets the position a relative numberOfRows based on the current position.
`void`	`removePropertyChangeListener(java.beans.PropertyChangeListener listener)` Removes the PropertyChangeListener from the internal list.
`void`	`removeVetoableChangeListener(java.beans.VetoableChangeListener listener)` Removes the VetoableChangeListener from the internal list.
`void`	`setObjectProperties(java.util.Vector properties, int columnIndex)` Sets the data object's properties at the specified columnIndex.

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

- Field Detail
  - rows_
```
protected java.util.Vector rows_
```
  - rowProperties_
```
protected java.util.Vector rowProperties_
```
- Constructor Detail
  - RowData
```
public RowData()
```
    Constructs a default RowData object.
- Method Detail
  - absolute
```
public boolean absolute(int rowIndex)
```
    Sets the position to the specified rowIndex. Attempting to move beyond the first row will move to the position before the first row. Attempting to move beyond the last row will move to the position after the last row.
    
    Parameters:
    rowIndex - The row index (0-based). The rowIndex must be zero or a positive integer which is less than the number of rows.
    
    Returns:
    true if the requested position exists; false otherwise.
  - addPropertyChangeListener
```
public void addPropertyChangeListener(java.beans.PropertyChangeListener listener)
```
    Adds a PropertyChangeListener. The specified PropertyChangeListener's propertyChange method is called each time the value of any bound property is changed.
    
    Parameters:
    listener - The PropertyChangeListener.
    See Also:
    removePropertyChangeListener(java.beans.PropertyChangeListener)
  - addVetoableChangeListener
```
public void addVetoableChangeListener(java.beans.VetoableChangeListener listener)
```
    Adds the VetoableChangeListener. The specified VetoableChangeListener's vetoableChange method is called each time the value of any constrained property is changed.
    
    Parameters:
    listener - The VetoableChangeListener.
    See Also:
    removeVetoableChangeListener(java.beans.VetoableChangeListener)
  - afterLast
```
public void afterLast()
```
    Sets the position after the last row in the list. This is a valid position after the end of the list.
  - beforeFirst
```
public void beforeFirst()
```
    Sets the position before the first row in the list. This is a valid position before the beginning of the list.
  - first
```
public boolean first()
```
    Sets the position to the first row in the list.
    
    Returns:
    true if the requested position exists; false if the list is empty.
  - getCurrentPosition
```
public int getCurrentPosition()
```
    Returns the current row position.
    
    Returns:
    The row position (0-based).
  - getMetaData
```
public abstract RowMetaData getMetaData()
                                 throws RowDataException
```
    Returns the meta data.
    
    Returns:
    The meta data.
    
    Throws:
    
    RowDataException - If a row data error occurs.
  - getObject
```
public java.lang.Object getObject(int columnIndex)
                           throws RowDataException
```
    Returns the current row's column data specified at columnIndex.
    
    Parameters:
    columnIndex - The column index (0-based).
    
    Returns:
    The column object.
    
    Throws:
    
    RowDataException - If a row data error occurs.
  - getObjectProperties
```
public java.util.Vector getObjectProperties(int columnIndex)
```
    Returns the data object's property list at the specified columnIndex.
    
    Parameters:
    columnIndex - The column index (0-based).
    
    Returns:
    The property list for the column data object.
    See Also:
    setObjectProperties(java.util.Vector, int)
  - getRowProperties
```
public java.util.Vector[] getRowProperties()
```
    Returns the current row's property list. Each Vector in the properties list corresponds to the appropriate data object's list of properties.
    
    Returns:
    The property lists for each data object in the row.
  - isAfterLast
```
public boolean isAfterLast()
```
    Indicates whether the current position is after the last row in the list. This is a valid position after the end of the list.
    
    Returns:
    true if the position is after the last row; false otherwise.
  - isBeforeFirst
```
public boolean isBeforeFirst()
```
    Indicates whether the current position is before the first row in the list. This is a valid position before the beginning of the list.
    
    Returns:
    true if the position is before the first row and the list is not empty; false otherwise.
  - isFirst
```
public boolean isFirst()
```
    Indicates whether the current position is the first row in the list.
    
    Returns:
    true if the position is the first row; false otherwise.
  - isLast
```
public boolean isLast()
```
    Indicates whether the current position is the last row in the list.
    
    Returns:
    true if the position is the last row; false otherwise.
  - last
```
public boolean last()
```
    Sets the position to the last row in the list.
    
    Returns:
    true if the requested position exists; false if the list is empty.
  - length
```
public int length()
```
    Returns the number of rows in the list.
    
    Returns:
    The number of rows.
  - next
```
public boolean next()
```
    Sets the position to the next row in the list. The list is initially positioned before its first row. The first call to next makes the first row the current row, the second call makes the second row the current row, etc. Moving beyond last row in the list will result in a position after the last row.
    
    Returns:
    true if the requested position exists in the list; false if there are no more rows.
  - previous
```
public boolean previous()
```
    Sets the position to the previous row in the list. Moving beyond the first row in the list will result in a position before the first row.
    
    Returns:
    true if the requested position exists in the list; false otherwise.
  - relative
```
public boolean relative(int numberOfRows)
```
    Sets the position a relative numberOfRows based on the current position. Moving beyond the first/last row in the list will result in a position before/after the first/last row.
    
    Parameters:
    numberOfRows - The number of rows to move, either positive or negative.
    
    Returns:
    true if the requested position exists; false otherwise.
  - removePropertyChangeListener
```
public void removePropertyChangeListener(java.beans.PropertyChangeListener listener)
```
    Removes the PropertyChangeListener from the internal list. If the PropertyChangeListener is not on the list, nothing is done.
    
    Parameters:
    listener - The PropertyChangeListener.
    See Also:
    addPropertyChangeListener(java.beans.PropertyChangeListener)
  - removeVetoableChangeListener
```
public void removeVetoableChangeListener(java.beans.VetoableChangeListener listener)
```
    Removes the VetoableChangeListener from the internal list. If the VetoableChangeListener is not on the list, nothing is done.
    
    Parameters:
    listener - The VetoableChangeListener.
    See Also:
    addVetoableChangeListener(java.beans.VetoableChangeListener)
  - setObjectProperties
```
public void setObjectProperties(java.util.Vector properties,
                       int columnIndex)
```
    Sets the data object's properties at the specified columnIndex. Object properties are user defined objects that can be associated with the data in the row.
    
    Parameters:
    properties - The properties.
    columnIndex - The column index (0-based).
    See Also:
    getObjectProperties(int)

Methods inherited from class java.lang.Object

rows_

rowProperties_

RowData

absolute

addPropertyChangeListener

addVetoableChangeListener

afterLast

beforeFirst

first

getCurrentPosition

getMetaData

getObject

getObjectProperties

getRowProperties

isAfterLast

isBeforeFirst

isFirst

isLast

last

length

next

previous

relative

removePropertyChangeListener

removeVetoableChangeListener

setObjectProperties