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Java Source Code / Java Documentation » Report » pentaho report » org.jfree.report.filter

Source Cross Reference Class Diagram Java Document (Java Doc)

java.lang .Object

org.jfree.report.filter .StringFilter

StringFilter
public class StringFilter implements DataFilter,RawDataSource(Code)
	A filter that returns the value from a data source as a String. The value is converted to an String using String.valueOf () which uses Object.toString() to convert the object into the string. You can specify a default string to return when the value from the data source is `null`. Initially the string 'null' is used. author: Thomas Morgner

Constructor Summary
public	StringFilter() Default constructor.

Method Summary
public Object	clone() Clones the filter.
public DataSource	getDataSource() Returns the data source for this filter.
public FormatSpecification	getFormatString(ExpressionRuntime runtime, FormatSpecification formatSpecification)
public String	getNullValue() Returns the string used to represent a null value.
public Object	getRawValue(ExpressionRuntime runtime)
public Object	getValue(ExpressionRuntime runtime) Returns the value obtained from the data source.
public void	setDataSource(DataSource ds) Sets the data source for this filter.
public void	setNullValue(String nullvalue) Sets the string used to represent a null value.

Constructor Detail

StringFilter
public StringFilter()(Code)
	Default constructor.

Method Detail

clone
public Object clone() throws CloneNotSupportedException(Code)
	Clones the filter. a clone. throws: CloneNotSupportedException - this should never happen.

getDataSource
public DataSource getDataSource()(Code)
	Returns the data source for this filter. the data source.

getFormatString
public FormatSpecification getFormatString(ExpressionRuntime runtime, FormatSpecification formatSpecification)(Code)

getNullValue
public String getNullValue()(Code)
	Returns the string used to represent a null value. the string.

getRawValue
public Object getRawValue(ExpressionRuntime runtime)(Code)

getValue
public Object getValue(ExpressionRuntime runtime)(Code)
	Returns the value obtained from the data source. The filter ensures that the returned value is a String, even though the return type is Object (as required by the DataSource interface). Parameters: runtime - the expression runtime that is used to evaluate formulas and expressions when computing the value ofthis filter. the string.

setDataSource
public void setDataSource(DataSource ds)(Code)
	Sets the data source for this filter. Parameters: ds - the data source.

setNullValue
public void setNullValue(String nullvalue)(Code)
	Sets the string used to represent a null value. Parameters: nullvalue - the null value.

Methods inherited from java.lang.Object

native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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