uk.ac.starlink.ttools.jel

Class ConstantResolver

java.lang.Object

gnu.jel.DVMap

uk.ac.starlink.ttools.jel.ConstantResolver

public class ConstantResolver
extends gnu.jel.DVMap

DVMap implementation that can reference values from a supplied Map of Constant values.

Primitives, strings and objects are currently catered for.

Since:

10 Jul 2025

Author:

Mark Taylor

Constructor Summary

Constructors

Constructor and Description
ConstantResolver(Map<String,? extends Constant<?>> constMap) Constructor.

Method Summary

Modifier and Type	Method and Description
boolean	getBooleanProperty(String name)
byte	getByteProperty(String name)
char	getCharacterProperty(String name)
Map<String,? extends Constant<?>>	getConstantMap() Returns this resolver's map of known constants.
double	getDoubleProperty(String name)
float	getFloatProperty(String name)
int	getIntegerProperty(String name)
long	getLongProperty(String name)
Object	getObjectProperty(String name)
short	getShortProperty(String name)
String	getStringProperty(String name)
Set<Constant<?>>	getTranslatedConstants() Returns a collection of those constants that have been referenced in expressions compiled with use of this resolver.
String	getTypeName(String name)

Methods inherited from class gnu.jel.DVMap

translate

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ConstantResolver

public ConstantResolver(Map<String,? extends Constant<?>> constMap)

Constructor. The supplied map of constants may change its content over the lifetime of this object, resolution will correspond to its state at resolution time.

Parameters:

constMap - map by name of Constant objects

Method Detail

getConstantMap

public Map<String,? extends Constant<?>> getConstantMap()

Returns this resolver's map of known constants.

Returns:

map by name of Constant objects

getTranslatedConstants

public Set<Constant<?>> getTranslatedConstants()

Returns a collection of those constants that have been referenced in expressions compiled with use of this resolver.

Returns:

set of referenced constants

getTypeName

public String getTypeName(String name)

Specified by:

getTypeName in class gnu.jel.DVMap

getDoubleProperty

public double getDoubleProperty(String name)

getFloatProperty

public float getFloatProperty(String name)

getLongProperty

public long getLongProperty(String name)

getIntegerProperty

public int getIntegerProperty(String name)

getShortProperty

public short getShortProperty(String name)

getByteProperty

public byte getByteProperty(String name)

getBooleanProperty

public boolean getBooleanProperty(String name)

getCharacterProperty

public char getCharacterProperty(String name)

getStringProperty

public String getStringProperty(String name)

getObjectProperty

public Object getObjectProperty(String name)