All Known Implementing Classes:

Value.Absent, Value.BoolValue, Value.IntValue, Value.NullValue, Value.RealValue, Value.RegexValue, Value.SetValue, Value.StrValue, Value.TypeValue
```
public interface Value
```
The universal scalar produced by attribute resolution and carried by query literals, as a closed set of nested variants discriminated by kind().

Nested Class Summary

Nested Classes
Modifier and Type	Interface	Description
`static class`	`Value.Absent`
`static class`	`Value.BoolValue`
`static class`	`Value.IntValue`
`static class`	`Value.NullValue`
`static class`	`Value.RealValue`
`static class`	`Value.RegexValue`
`static class`	`Value.SetValue`
`static class`	`Value.StrValue`
`static class`	`Value.TypeValue`	A type reference: either an internal name (`java/lang/String`) or a descriptor (`I`).

Field Summary

Fields
Modifier and Type Field Description

static Value ABSENT
The sentinel for "could not be determined statically".

Method Summary

All Methods Static Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`ValueKind`	`kind()`
`static Value`	`of(boolean v)`	Wraps a flag, reusing the two shared instances.
`static Value`	`of(double v)`	Wraps a floating point number.
`static Value`	`of(long v)`	Wraps a whole number.
`static Value`	`of(String v)`	Wraps a string, mapping null onto the null value rather than failing.
`static Value`	`ofNull()`
`static Value`	`ofRegex(Pattern pattern)`	Wraps a compiled pattern for use as the right-hand side of a match.
`static Value`	`ofSet(List<Value> members)`	Wraps a member list for use as the right-hand side of a membership test.
`static Value`	`ofType(String internalNameOrDescriptor)`	Wraps a type reference.

- Field Detail
  - ABSENT
```
static final Value ABSENT
```
    The sentinel for "could not be determined statically".
- Method Detail
  - kind
```
ValueKind kind()
```
    Returns:
    
    the discriminator identifying which variant this is
  - of
```
static Value of(long v)
```
    Wraps a whole number.
    
    Parameters:
    
    v - the number to wrap
    
    Returns:
    
    an INT-kinded value
  - of
```
static Value of(double v)
```
    Wraps a floating point number.
    
    Parameters:
    
    v - the number to wrap
    
    Returns:
    
    a REAL-kinded value
  - of
```
static Value of(boolean v)
```
    Wraps a flag, reusing the two shared instances.
    
    Parameters:
    
    v - the flag to wrap
    
    Returns:
    
    a BOOL-kinded value
  - of
```
static Value of(String v)
```
    Wraps a string, mapping null onto the null value rather than failing.
    
    Parameters:
    
    v - the string to wrap, may be null
    
    Returns:
    
    a STRING-kinded value, or the NULL-kinded value when v is null
  - ofType
```
static Value ofType(String internalNameOrDescriptor)
```
    Wraps a type reference.
    
    Parameters:
    
    internalNameOrDescriptor - an internal name such as java/lang/String, or a descriptor such as I
    
    Returns:
    
    a TYPE-kinded value
  - ofRegex
```
static Value ofRegex(Pattern pattern)
```
    Wraps a compiled pattern for use as the right-hand side of a match.
    
    Parameters:
    
    pattern - the pattern to wrap
    
    Returns:
    
    a REGEX-kinded value
  - ofSet
```
static Value ofSet(List<Value> members)
```
    Wraps a member list for use as the right-hand side of a membership test.
    
    Parameters:
    
    members - the members, copied defensively
    
    Returns:
    
    a SET-kinded value
  - ofNull
```
static Value ofNull()
```
    Returns:
    
    the shared NULL-kinded value

Interface Value

Nested Class Summary

Field Summary

Method Summary

Field Detail

ABSENT

Method Detail

kind

of

of

of

of

ofType

ofRegex

ofSet

ofNull