uk.org.ogsadai.client.toolkit.activity.sql
Class RemoveDuplicatesWebRowSet

java.lang.Object
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  +--uk.org.ogsadai.client.toolkit.activity.RequestComponent
        |
        +--uk.org.ogsadai.client.toolkit.activity.Activity
              |
              +--uk.org.ogsadai.client.toolkit.activity.sql.RemoveDuplicatesWebRowSet

public class RemoveDuplicatesWebRowSet

extends Activity

This activity is usually linked to the outupt of a SQLBag activity and aims at removing any duplicate rows existing in the WebRowSet document. therefore, both the input and the output are WebRowSet documents.

Author:

OGSA-DAI Project Team

Field Summary

private static java.lang.String	COPYRIGHT_NOTICE Copyright statement
private int	mResultSetType Type of ResultSets generated using this class

Fields inherited from class uk.org.ogsadai.client.toolkit.activity.Activity

Fields inherited from class uk.org.ogsadai.client.toolkit.activity.RequestComponent

Constructor Summary

RemoveDuplicatesWebRowSet()
Consructs an activity whose input will normally be the output of a SQLQueryAND activity.

Method Summary

protected java.lang.String	generateXML() Generates the XML representing the activity.
ActivityOutput	getOutput() Gets the activity's only output.
java.lang.String	getOutString() get the output as a string
java.sql.ResultSet	getResultSet() Get the WebRowSet XML output from this activity and convert it into a ResultSet of type specified by getResultSetType.
void	setInput(ActivityOutput input) Sets the input of this activity

Methods inherited from class uk.org.ogsadai.client.toolkit.activity.Activity

addInput, addOutput, addOutputs, getDataResourceID, getInputParameters, getOutputParameters, getOutputs, replaceSpecialCharacters, setDataResourceID, setInput

Methods inherited from class uk.org.ogsadai.client.toolkit.activity.RequestComponent

getDataService, getName, getSession, setDataService, setSession

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

COPYRIGHT_NOTICE

private static final java.lang.String COPYRIGHT_NOTICE

Copyright statement

See Also:

Constant Field Values

mResultSetType

private int mResultSetType

Type of ResultSets generated using this class

Constructor Detail

RemoveDuplicatesWebRowSet

public RemoveDuplicatesWebRowSet()

Consructs an activity whose input will normally be the output of a SQLQueryAND activity.

Method Detail

setInput

public void setInput(ActivityOutput input)

Sets the input of this activity

Parameters:

input - the activty input

getOutput

public ActivityOutput getOutput()

Gets the activity's only output.

Returns:

the activity output.

getOutString

public java.lang.String getOutString()
                              throws NoActivityOutputException

get the output as a string

Returns:

the output string

Throws:

NoActivityOutputException

getResultSet

public java.sql.ResultSet getResultSet()
                                throws NoActivityOutputException,
                                       DataFormatException

Get the WebRowSet XML output from this activity and convert it into a ResultSet of type specified by getResultSetType.

Returns:

ResultSet containing query result.

Throws:

NoActivityOutputException - if there is no output data or the data has not yet been processed to this output or the activity that generates this output has not yet been executed.

DataFormatException - if the output from the activity cannot be parsed into a ResultSet.

generateXML

protected java.lang.String generateXML()

Description copied from class: RequestComponent

Generates the XML representing the activity. This XML can then be inserted into a perform document that is sent to a data service.

Specified by:

generateXML in class Activity

Returns:

the XML for the activity