Package com.denodo.vdb.engine.customwrapper

Class CustomWrapperResult

java.lang.Object

com.denodo.vdb.engine.customwrapper.CustomWrapperResult

public final class CustomWrapperResult
extends Object

Custom Wrappers use this class to return any data retrieved from their data source.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	CustomWrapperResult.CustomWrapperResultListener	Important: do not implement or reference this interface.

Constructor Summary

Constructors

Constructor	Description
CustomWrapperResult()

Method Summary

Modifier and Type	Method	Description
void	addRow(Object[] row)	Invoke this method to add a row to the result set.
void	addRow(Object[] row, List<CustomWrapperFieldExpression> projectedFields)	Deprecated. Use method addRow(Object[])
List<CustomWrapperFieldExpression>	getProjectedFields()
CustomWrapperSchemaParameter[]	getSchema()	Returns the schema of this instance of the custom wrapper.
void	setListener(CustomWrapperResult.CustomWrapperResultListener listener)	Important: do not invoke this method.
void	setProjectedFields(List<CustomWrapperFieldExpression> projectedFields)

Methods inherited from class java.lang.Object

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

Constructor Details

CustomWrapperResult

public CustomWrapperResult()

Method Details

addRow

@Deprecated
public void addRow(Object[] row,
 List<CustomWrapperFieldExpression> projectedFields)

Deprecated.

Use method addRow(Object[])

Invoke this method to add a row to the result set.

The elements of the parameter array have to contain the values of the row. You have to place these elements in the same order as the fields in the list projectedFields. For example, if the field f3 is the first one in the list projectedFields, its value also has to be in the first position of the array.

Except in very rare scenarios, the value of the parameter projectedFields always has to be the input parameter projectedFields of the method run of the CustomWrapper interface, from which you invoke this method.

Parameters:

row - array of Object that contains the values of the row.

projectedFields - list of projected fields.

addRow

public void addRow(Object[] row)

Invoke this method to add a row to the result set.

The elements of the parameter row have to contain the values of the row. You have to place these elements in the same order as the fields in the list projectedFields received in the run method of the wrapper. For example, if the field f3 is the first one in the list projectedFields, its value also has to be in the first position of the array.

Parameters:

row - array of Object that contains the values of the row.

Since:

7.0u20200310

getSchema

public CustomWrapperSchemaParameter[] getSchema()

Returns the schema of this instance of the custom wrapper.

Returns:

an array of CustomWrapperSchemaParameter

setListener

public void setListener(CustomWrapperResult.CustomWrapperResultListener listener)

Important: do not invoke this method. For internal purposes only.

Parameters:

listener - -

getProjectedFields

public List<CustomWrapperFieldExpression> getProjectedFields()

setProjectedFields

public void setProjectedFields(List<CustomWrapperFieldExpression> projectedFields)