Java Doc for FormulaField.java in  » Report » datavision-1.1.0 » jimm » datavision » field » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » Report » datavision 1.1.0 » jimm.datavision.field   Source Cross Reference   Class Diagram   Java Document (Java Doc)   java.lang.Object    java.util.Observable       jimm.datavision.Element          jimm.datavision.field.Field             jimm.datavision.field.FormulaField FormulaField public class FormulaField extends Field implements Observer(Code) A formula field represents a formula calculated on-the-fly. The value of a formula field holds a Formula object. (In the XML, the formula field's value is the id of the formula.) author:    Jim Menard, jimm@io.com Field Summary protected  Formula formula      Constructor Summary public   FormulaField(Long id, Report report, Section section, Object value, boolean visible)      Constructs a formula field with the specified id in the specified report section whose Formula 's id is value. Method Summary public  boolean canBeAggregated()      This override returns true if this formula is in a detail section. public  Collection columnsUsed()      Returns a collection of the columns used in the formula. public  String designLabel()      public  String dragString()      Not really used; we drag formulas, not formula fields. protected  void finalize()      public  String formulaString()      public  Formula getFormula()      Returns the formula. public  Object getValue()      Returns the value of this field. public  FieldWidget makeWidget(SectionWidget sw)      public  boolean refersTo(Field f)      public  boolean refersTo(Formula f)      public  boolean refersTo(UserColumn uc)      public  boolean refersTo(Parameter p)      public  void setFormula(Formula newFormula)      Sets the formula. public  String typeString()      public  void update(Observable o, Object arg)      public  Collection userColumnsUsed()      Returns a collection of the user columns used in the formula. Field Detail formula protected Formula formula(Code) Constructor Detail FormulaField public FormulaField(Long id, Report report, Section section, Object value, boolean visible)(Code) Constructs a formula field with the specified id in the specified report section whose Formula 's id is value. Parameters:   id - the new field's id Parameters:   report - the report containing this element Parameters:   section - the report section in which the field resides Parameters:   value - the id of a formula Parameters:   visible - show/hide flag Method Detail canBeAggregated public boolean canBeAggregated()(Code) This override returns true if this formula is in a detail section. We don't really know that this formula returns a number, so we'll err on the side of allowing aggregation. true if this field can be aggregated columnsUsed public Collection columnsUsed()(Code) Returns a collection of the columns used in the formula. This is used by the report's query when it is figuring out what columns and tables are used by the report. Calls Formula.columnsUsed . a possibly empty collection of database columns See Also:   jimm.datavision.source.Query.findSelectablesUsed designLabel public String designLabel()(Code) dragString public String dragString()(Code) Not really used; we drag formulas, not formula fields. finalize protected void finalize() throws Throwable(Code) formulaString public String formulaString()(Code) getFormula public Formula getFormula()(Code) Returns the formula. the formula getValue public Object getValue()(Code) Returns the value of this field. For formula fields, this is the value generated by evaluating the Formula . the result of evaluating the formula makeWidget public FieldWidget makeWidget(SectionWidget sw)(Code) refersTo public boolean refersTo(Field f)(Code) refersTo public boolean refersTo(Formula f)(Code) refersTo public boolean refersTo(UserColumn uc)(Code) refersTo public boolean refersTo(Parameter p)(Code) setFormula public void setFormula(Formula newFormula)(Code) Sets the formula. Parameters:   newFormula - the new formula typeString public String typeString()(Code) update public void update(Observable o, Object arg)(Code) userColumnsUsed public Collection userColumnsUsed()(Code) Returns a collection of the user columns used in the formula. This is used by the report's query when it is figuring out what columns, tables, and user columns are used by the report. Calls Formula.userColumnsUsed . a possibly empty collection of user columns See Also:   jimm.datavision.source.Query.findSelectablesUsed Fields inherited from jimm.datavision.field.Field final public static double DEFAULT_HEIGHT(Code)(Java Doc) final public static double DEFAULT_WIDTH(Code)(Java Doc) protected Border border(Code)(Java Doc) protected Rectangle bounds(Code)(Java Doc) protected FormattedValueCache cache(Code)(Java Doc) protected Format format(Code)(Java Doc) protected Long id(Code)(Java Doc) static Long maxIdSeen(Code)(Java Doc) protected Object value(Code)(Java Doc) Methods inherited from jimm.datavision.field.Field public boolean canBeAggregated()(Code)(Java Doc) public Object clone()(Code)(Java Doc) public static Field create(Long id, Report report, Section section, String type, Object value, boolean visible)(Code)(Java Doc) public static Field createFromDragString(Report report, String str)(Code)(Java Doc) public String designLabel()(Code)(Java Doc) abstract public String dragString()(Code)(Java Doc) protected void finalize() throws Throwable(Code)(Java Doc) abstract public String formulaString()(Code)(Java Doc) public Border getBorder()(Code)(Java Doc) public Border getBorderOrDefault()(Code)(Java Doc) public Rectangle getBounds()(Code)(Java Doc) public Format getFormat()(Code)(Java Doc) public Object getId()(Code)(Java Doc) public double getOutputHeight()(Code)(Java Doc) public Object getValue()(Code)(Java Doc) public FieldWidget makeWidget(SectionWidget sw)(Code)(Java Doc) public boolean refersTo(Field f)(Code)(Java Doc) public boolean refersTo(Formula f)(Code)(Java Doc) public boolean refersTo(UserColumn uc)(Code)(Java Doc) public boolean refersTo(Parameter p)(Code)(Java Doc) public void setBorder(Border newBorder)(Code)(Java Doc) public void setBounds(Rectangle newBounds)(Code)(Java Doc) public void setFormat(Format newFormat)(Code)(Java Doc) public void setValue(Object newValue)(Code)(Java Doc) public String toString()(Code)(Java Doc) abstract public String typeString()(Code)(Java Doc) public void update(Observable o, Object arg)(Code)(Java Doc) protected void writeFieldGuts(XMLWriter out)(Code)(Java Doc) public void writeXML(XMLWriter out)(Code)(Java Doc) Fields inherited from jimm.datavision.Element protected Report report(Code)(Java Doc) protected Section section(Code)(Java Doc) protected boolean visible(Code)(Java Doc) Methods inherited from jimm.datavision.Element public Report getReport()(Code)(Java Doc) public Section getSection()(Code)(Java Doc) public boolean isVisible()(Code)(Java Doc) public void setSection(Section s)(Code)(Java Doc) public void setVisible(boolean newVisible)(Code)(Java Doc) public void update(Observable o, Object arg)(Code)(Java Doc) abstract public void writeXML(XMLWriter out)(Code)(Java Doc) Methods inherited from java.util.Observable public synchronized void addObserver(Observer o)(Code)(Java Doc) protected synchronized void clearChanged()(Code)(Java Doc) public synchronized int countObservers()(Code)(Java Doc) public synchronized void deleteObserver(Observer o)(Code)(Java Doc) public synchronized void deleteObservers()(Code)(Java Doc) public synchronized boolean hasChanged()(Code)(Java Doc) public void notifyObservers()(Code)(Java Doc) public void notifyObservers(Object arg)(Code)(Java Doc) protected synchronized void setChanged()(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)