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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 .AbstractCompareExpression

All known Subclasses:   org.jfree.report.function.strings .CompareStringExpression,  org.jfree.report.function.numeric .CompareNumberExpression,  org.jfree.report.function .CompareFieldsExpression,  org.jfree.report.function.date .CompareDateExpression,
AbstractCompareExpression
abstract public class AbstractCompareExpression extends AbstractExpression (Code)
The base class for all expressions that compare a value read from the datarow with another value. This expression and all subclasses have been made obsolete by the Formula-Support.
The given field name is always used to retrieve the left hand operand of the comparison. The value supplied by the expression implementation is always the right hand operand.
author:
   Thomas Morgner

Field Summary
final public static String EQUAL
     A constant for an equals comparison.
final public static String GREATER
     A constant for greater than comparison.
final public static String GREATER_EQUAL
     A constant for greater than or equal comparison.
final public static String LOWER
     A constant for lower than comparison.
final public static String LOWER_EQUAL
     A constant for lower than or equal comparison.
final public static String NOT_EQUAL
     A constant for a not equals comparison.

Constructor Summary
protected AbstractCompareExpression()
     The default constructor.

Method Summary
abstract protected Comparable getComparable()
     Returns the right-hand operand used in the comparison.
public String getCompareMethod()
     Returns the compare method that should be used in the expression evaluation.
public String getField()
     Returns the name of the field from where to read the first operand.
public Object getValue()
     Compares the value read from the data-row with the value supplied by the expression itself.
public void setCompareMethod(String compareMethod)
     Defines the compare method that should be used in the expression evaluation.
public void setField(String field)
     Defines the name of the field from where to read the first operand.

Field Detail
EQUAL
final public static String EQUAL(Code)
A constant for an equals comparison.

GREATER
final public static String GREATER(Code)
A constant for greater than comparison.

GREATER_EQUAL
final public static String GREATER_EQUAL(Code)
A constant for greater than or equal comparison.

LOWER
final public static String LOWER(Code)
A constant for lower than comparison.

LOWER_EQUAL
final public static String LOWER_EQUAL(Code)
A constant for lower than or equal comparison.

NOT_EQUAL
final public static String NOT_EQUAL(Code)
A constant for a not equals comparison.

Constructor Detail
AbstractCompareExpression
protected AbstractCompareExpression()(Code)
The default constructor.

Method Detail
getComparable
abstract protected Comparable getComparable()(Code)
Returns the right-hand operand used in the comparison. the right-hand operand.

getCompareMethod
public String getCompareMethod()(Code)
Returns the compare method that should be used in the expression evaluation. Must be one of the constants declared in this expression. the compare method.

getField
public String getField()(Code)
Returns the name of the field from where to read the first operand. the field name.

getValue
public Object getValue()(Code)
Compares the value read from the data-row with the value supplied by the expression itself. If the value is null or no comparable or cannot be compared for other reasons, this expression returns Boolean.FALSE. Boolean.TRUE or Boolean.FALSE.

setCompareMethod
public void setCompareMethod(String compareMethod)(Code)
Defines the compare method that should be used in the expression evaluation. Must be one of the constants declared in this expression.
Parameters:
  compareMethod - the compare method.

setField
public void setField(String field)(Code)
Defines the name of the field from where to read the first operand.
Parameters:
  field - the field name.

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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