TruthValues (Dataflow Library Distribution Project 8.0.0-98 API)

java.lang.Object
- com.pervasive.datarush.encoding.text.TruthValues

Direct Known Subclasses:

ExactTruthMapping, InsensitiveTruthMapping
```
public abstract class TruthValues
extends Object
```
A mapping between boolean values and strings. Any number of strings may be mapped to a boolean value, but each boolean value must have a single canonical string representation.

Field Summary

Fields
Modifier and Type Field Description

protected String falsity
Text representing a value of false.

protected String truth
Text representing a value of true.

Constructor Summary

Constructors
Modifier	Constructor	Description
`protected`	`TruthValues(String truth, String falsity)`	Defines a new mapping, specifying the canonical representations of `true` and `false`.

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`String`	`falseValue()`	Gets the string value for `false`.
`abstract boolean`	`isFalse(String text)`	Indicates whether the given string is a representation for `false`.
`abstract boolean`	`isTrue(String text)`	Indicates whether the given string is a representation for `true`.
`String`	`trueValue()`	Gets the string value for `true`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - truth
```
protected final String truth
```
    Text representing a value of true.
  - falsity
```
protected final String falsity
```
    Text representing a value of false.
- Constructor Detail
  - TruthValues
```
protected TruthValues(String truth,
                      String falsity)
```
    Defines a new mapping, specifying the canonical representations of true and false.
    
    Parameters:
    
    truth - the canonical string representation of true.
    
    falsity - the canonical string representation of false.
- Method Detail
  - falseValue
```
public String falseValue()
```
    Gets the string value for false.
    
    Returns:
    
    the canonical string representation of false.
  - trueValue
```
public String trueValue()
```
    Gets the string value for true.
    
    Returns:
    
    the canonical string representation of true.
  - isTrue
```
public abstract boolean isTrue(String text)
```
    Indicates whether the given string is a representation for true.
    
    Parameters:
    
    text - the string to check
    
    Returns:
    
    true if the string represents truth
  - isFalse
```
public abstract boolean isFalse(String text)
```
    Indicates whether the given string is a representation for false.
    
    Parameters:
    
    text - the string to check
    
    Returns:
    
    true if the string represents falsity