org.pentaho.reporting.engine.classic.core.filter.templates
Class StringFieldTemplate

java.lang.Object
  org.pentaho.reporting.engine.classic.core.filter.templates.AbstractTemplate
      org.pentaho.reporting.engine.classic.core.filter.templates.StringFieldTemplate

All Implemented Interfaces:

Serializable, Cloneable, DataSource, RawDataSource, Template

public class StringFieldTemplate
extends AbstractTemplate
implements RawDataSource

A string field template.

Author:

Thomas Morgner

See Also:

Serialized Form

Constructor Summary

StringFieldTemplate()
Creates a new string field template.

Method Summary

Object	clone() Clones the template.
String	getField() Returns the field name.
FormatSpecification	getFormatString(ExpressionRuntime runtime, Element element, FormatSpecification formatSpecification) Returns information about the formatstring that was used to transform a raw-value into a formatted text.
String	getFormula() Returns the formula used to compute the value of the data source.
String	getNullValue() Returns the value displayed by the field when the data source value is null.
Object	getRawValue(ExpressionRuntime runtime, Element element) Returns the unformated raw value.
Object	getValue(ExpressionRuntime runtime, Element element) Returns the current value for the data source.
void	setField(String field) Sets the field name.
void	setFormula(String formula) Defines the formula used to compute the value of this data source.
void	setNullValue(String nullValue) Sets the value displayed by the field when the data source value is null.

Methods inherited from class org.pentaho.reporting.engine.classic.core.filter.templates.AbstractTemplate

getInstance, getName, setName

Methods inherited from class java.lang.Object

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

Constructor Detail

StringFieldTemplate

public StringFieldTemplate()

Creates a new string field template.

Method Detail

getField

public String getField()

Returns the field name.

Returns:

The field name.

setField

public void setField(String field)

Sets the field name.

Parameters:

field - the field name.

getFormula

public String getFormula()

Returns the formula used to compute the value of the data source.

Returns:

the formula.

setFormula

public void setFormula(String formula)

Defines the formula used to compute the value of this data source.

Parameters:

formula - the formula for the data source.

getNullValue

public String getNullValue()

Returns the value displayed by the field when the data source value is null.

Returns:

A value to represent null.

setNullValue

public void setNullValue(String nullValue)

Sets the value displayed by the field when the data source value is null.

Parameters:

nullValue - the value that represents null.

getValue

public Object getValue(ExpressionRuntime runtime,
                       Element element)

Returns the current value for the data source.

Specified by:

getValue in interface DataSource

Parameters:

runtime - the expression runtime that is used to evaluate formulas and expressions when computing the value of this filter.

element -

Returns:

the value.

clone

public Object clone()
             throws CloneNotSupportedException

Clones the template.

Specified by:

clone in interface DataSource

Overrides:

clone in class AbstractTemplate

Returns:

the clone.

Throws:

CloneNotSupportedException - this should never happen.

getRawValue

public Object getRawValue(ExpressionRuntime runtime,
                          Element element)

Description copied from interface: RawDataSource

Returns the unformated raw value. Whether that raw value is useable for the export is beyond the scope of this API definition, but providing access to Number or Date objects is a good idea.

Specified by:

getRawValue in interface RawDataSource

Parameters:

runtime - the expression runtime that is used to evaluate formulas and expressions when computing the value of this filter.

Returns:

the raw data.

getFormatString

public FormatSpecification getFormatString(ExpressionRuntime runtime,
                                           Element element,
                                           FormatSpecification formatSpecification)

Description copied from interface: RawDataSource

Returns information about the formatstring that was used to transform a raw-value into a formatted text. Not all elements will make use of a format-string. These elements will return FormatSpecification.TYPE_UNDEFINED in that case.

Specified by:

getFormatString in interface RawDataSource

Parameters:

runtime - the Expression runtime used to possibly compute the raw-value.

element - the element to which this datasource is added.

formatSpecification - the format specification (can be null). @return a filled format specififcation. If the formatSpecification parameter was not null, this given instance is reused.