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

Source Cross Reference

Class Diagram

Java Document (Java Doc)

java.lang .Object

org.jfree.report.function .AbstractExpression

org.jfree.report.function .AbstractFunction

org.jfree.report.function .CountDistinctFunction

CountDistinctFunction
public class CountDistinctFunction extends AbstractFunction (Code)
	Counts the distinct occurences of an certain value of an column. This functionality is similiar to the SQL distinct() function. author: Thomas Morgner

Constructor Summary
public	CountDistinctFunction() DefaultConstructor.

Method Summary
public String	getField() Returns the field used by the function.
public String	getGroup() Returns the group name.
public Object	getValue() Return the number of distint values for the given column.
public void	groupStarted(ReportEvent event) Receives notification that a group has started.
public void	itemsAdvanced(ReportEvent event) Receives notification that a row of data is being processed.
public void	reportInitialized(ReportEvent event) Receives notification that report generation initializes the current run.
public void	setField(String field) Sets the field name for the function.
public void	setGroup(String name) Sets the group name.

Constructor Detail

CountDistinctFunction
public CountDistinctFunction()(Code)
	DefaultConstructor.

Method Detail

getField
public String getField()(Code)
	Returns the field used by the function. The field name corresponds to a column name in the report's data-row. The field name.

getGroup
public String getGroup()(Code)
	Returns the group name. The group name.

getValue
public Object getValue()(Code)
	Return the number of distint values for the given column. the value of the function.

groupStarted
public void groupStarted(ReportEvent event)(Code)
	Receives notification that a group has started. Parameters: event - the event.

itemsAdvanced
public void itemsAdvanced(ReportEvent event)(Code)
	Receives notification that a row of data is being processed. Parameters: event - the event.

reportInitialized
public void reportInitialized(ReportEvent event)(Code)
	Receives notification that report generation initializes the current run. The event carries a ReportState.Started state. Use this to initialize the report. Parameters: event - The event.

setField
public void setField(String field)(Code)
	Sets the field name for the function. The field name corresponds to a column name in the report's data-row. Parameters: field - the field name.

setGroup
public void setGroup(String name)(Code)
	Sets the group name. If a group is defined, the running total is reset to zero at the start of every instance of this group. Parameters: name - the group name (null permitted).

Methods inherited from org.jfree.report.function.AbstractFunction

public void groupFinished(ReportEvent event)(Code)(Java Doc)
public void groupStarted(ReportEvent event)(Code)(Java Doc)
public void itemsAdvanced(ReportEvent event)(Code)(Java Doc)
public void itemsFinished(ReportEvent event)(Code)(Java Doc)
public void itemsStarted(ReportEvent event)(Code)(Java Doc)
public void reportDone(ReportEvent event)(Code)(Java Doc)
public void reportFinished(ReportEvent event)(Code)(Java Doc)
public void reportInitialized(ReportEvent event)(Code)(Java Doc)
public void reportStarted(ReportEvent event)(Code)(Java Doc)

Methods inherited from org.jfree.report.function.AbstractExpression

public Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public DataRow getDataRow()(Code)(Java Doc)
public int getDependencyLevel()(Code)(Java Doc)
public Expression getInstance()(Code)(Java Doc)
public String getName()(Code)(Java Doc)
public Configuration getReportConfiguration()(Code)(Java Doc)
public ResourceBundleFactory getResourceBundleFactory()(Code)(Java Doc)
public ExpressionRuntime getRuntime()(Code)(Java Doc)
final public boolean isActive()(Code)(Java Doc)
public boolean isDeepTraversing()(Code)(Java Doc)
public boolean isPreserve()(Code)(Java Doc)
final public void setActive(boolean active)(Code)(Java Doc)
public void setDependencyLevel(int level)(Code)(Java Doc)
public void setName(String name)(Code)(Java Doc)
public void setPreserve(boolean preserve)(Code)(Java Doc)
public void setRuntime(ExpressionRuntime runtime)(Code)(Java Doc)

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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