java.lang.Object
- org.qdl_lang.variables.values.QDLValue

All Implemented Interfaces:

Serializable, Comparable<QDLValue>, Constants

Direct Known Subclasses:

AllIndicesValue, AxisRestrictionValue, BooleanValue, DecimalValue, DyadicFunctionReferenceValue, FunctionReferenceValue, ModuleValue, QDLKey, QDLNullValue, SetValue
```
public class QDLValue
extends Object
implements Constants, Serializable, Comparable<QDLValue>
```
The top-level wrapper class for every value QDL knows about.

See Also:

Serialized Form

Field Summary

Fields
Modifier and Type	Field	Description
`protected AxisExpression`	`axisValue`
`protected Boolean`	`booleanValue`
`protected BigDecimal`	`decimalValue`
`protected DyadicFunctionReferenceNode`	`dyadicFunctionValue`
`protected FunctionReferenceNode`	`functionValue`
`protected Long`	`longValue`
`protected Module`	`moduleValue`
`protected QDLNull`	`nullValue`
`protected QDLSet`	`setValue`
`protected QDLStem`	`stemValue`
`protected String`	`stringValue`

Fields inherited from interface org.qdl_lang.variables.Constants
ALL_INDICES_NAME, ALL_INDICES_TYPE, ARG_COUNT_TYPE, AXIS_RESTRICTION_NAME, AXIS_RESTRICTION_TYPE, BOOLEAN_NAME, BOOLEAN_TYPE, DECIMAL_NAME, DECIMAL_TYPE, DYADIC_FUNCTION_NAME, DYADIC_FUNCTION_TYPE, FUNCTION_NAME, FUNCTION_TYPE, INTEGER_TYPE, LIST_NAME, LIST_TYPE, LONG_NAME, LONG_TYPE, MODULE_NAME, MODULE_TYPE, NULL_NAME, NULL_TYPE, SET_NAME, SET_TYPE, STEM_NAME, STEM_TYPE, STRING_NAME, STRING_TYPE, UNKNOWN_NAME, UNKNOWN_TYPE

Constructor Summary

Constructors
Constructor Description

QDLValue(Object value)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`AxisExpression`	`asAxisExpression()`
`Boolean`	`asBoolean()`
`BigDecimal`	`asDecimal()`
`DyadicFunctionReferenceNode`	`asDyadicFunction()`
`FunctionReferenceNode`	`asFunction()`
`static Object`	`asJavaValue(Object value)`	effectively the inverse of `asQDLValue(Object)`.
`Long`	`asLong()`
`Module`	`asModule()`
`QDLNull`	`asNull()`
`static QDLValue`	`asQDLValue(Object value)`	Factory method to convert an object to a `QDLValue` if it is not one.
`QDLSet`	`asSet()`
`QDLStem`	`asStem()`
`String`	`asString()`
`static Object[]`	`castToJavaValues(Object[] values)`
`static List<Object>`	`castToJavaValues(List<QDLValue> values)`	Utility to convert a collection of `QDLValue`s to their Java objects.
`static List<QDLValue>`	`castToQDLValueList(Object[] values)`
`static QDLValue[]`	`castToQDLValues(Object[] values)`
`static Collection<QDLValue>`	`castToQDLValues(Collection<Object> values)`
`static List<QDLValue>`	`castToQDLValues(List<Object> values)`	Inverse cast of `castToJavaValues(List)`.
`static Set<QDLValue>`	`castToQDLValues(Set<Object> values)`
`int`	`compareTo(QDLValue qdlValue)`
`boolean`	`equals(Object object)`
`String`	`getInputForm()`
`static QDLNullValue`	`getNullValue()`
`int`	`getType()`
`Object`	`getValue()`
`int`	`hashCode()`
`boolean`	`hasValue()`
`boolean`	`isAllIndices()`
`boolean`	`isAxisRestriction()`
`boolean`	`isBoolean()`
`boolean`	`isDecimal()`
`boolean`	`isDyadicFunction()`
`boolean`	`isFunction()`
`boolean`	`isList()`
`boolean`	`isListOrStem()`
`boolean`	`isLong()`
`boolean`	`isModule()`
`boolean`	`isNull()`
`boolean`	`isScalar()`
`boolean`	`isSet()`
`boolean`	`isStem()`
`boolean`	`isString()`
`void`	`setValue(Object value)`
`String`	`toString()`

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

Field Detail

longValue
```
protected Long longValue
```

booleanValue
```
protected Boolean booleanValue
```

decimalValue
```
protected BigDecimal decimalValue
```

stringValue
```
protected String stringValue
```

moduleValue
```
protected Module moduleValue
```

functionValue

protected FunctionReferenceNode functionValue

dyadicFunctionValue

protected DyadicFunctionReferenceNode dyadicFunctionValue

axisValue
```
protected AxisExpression axisValue
```

setValue
```
protected QDLSet setValue
```

stemValue
```
protected QDLStem stemValue
```

nullValue
```
protected QDLNull nullValue
```

Constructor Detail
- QDLValue
```
public QDLValue(Object value)
```

Method Detail

getValue
```
public Object getValue()
```

setValue

public void setValue(Object value)

hasValue
```
public boolean hasValue()
```

getType
```
public int getType()
```

isAxisRestriction
```
public boolean isAxisRestriction()
```

isBoolean
```
public boolean isBoolean()
```

isDecimal
```
public boolean isDecimal()
```

isDyadicFunction
```
public boolean isDyadicFunction()
```

isFunction
```
public boolean isFunction()
```

isList
```
public boolean isList()
```

isListOrStem
```
public boolean isListOrStem()
```

isLong
```
public boolean isLong()
```

isModule
```
public boolean isModule()
```

isNull
```
public boolean isNull()
```

isSet
```
public boolean isSet()
```

isStem
```
public boolean isStem()
```

isString
```
public boolean isString()
```

isAllIndices
```
public boolean isAllIndices()
```

asBoolean
```
public Boolean asBoolean()
```

asDecimal
```
public BigDecimal asDecimal()
```

asStem
```
public QDLStem asStem()
```

asString
```
public String asString()
```

asNull
```
public QDLNull asNull()
```

asSet
```
public QDLSet asSet()
```

asModule
```
public Module asModule()
```

asLong
```
public Long asLong()
```

asFunction

public FunctionReferenceNode asFunction()

asDyadicFunction

public DyadicFunctionReferenceNode asDyadicFunction()

asAxisExpression

public AxisExpression asAxisExpression()

toString
```
public String toString()
```
Overrides:

toString in class Object

equals

public boolean equals(Object object)

Overrides:: equals in class Object

hashCode
```
public int hashCode()
```
Overrides:

hashCode in class Object

getInputForm
```
public String getInputForm()
```

getNullValue

public static QDLNullValue getNullValue()

asQDLValue
```
public static QDLValue asQDLValue(Object value)
```
Factory method to convert an object to a QDLValue if it is not one.

Parameters:

value -

Returns:

asJavaValue
```
public static Object asJavaValue(Object value)
```
effectively the inverse of asQDLValue(Object). If this is QDLValue it will unwrap the value, otherwise it just returns the argument.

Parameters:

value -

Returns:

castToJavaValues
```
public static List<Object> castToJavaValues(List<QDLValue> values)
```
Utility to convert a collection of QDLValues to their Java objects.

Parameters:

values -

Returns:

castToJavaValues

public static Object[] castToJavaValues(Object[] values)

castToQDLValues
```
public static List<QDLValue> castToQDLValues(List<Object> values)
```
Inverse cast of castToJavaValues(List). This takes a collection of java values and turns it into a list of QDLValues

Parameters:

values -

Returns:

castToQDLValues

public static Collection<QDLValue> castToQDLValues(Collection<Object> values)

castToQDLValues

public static Set<QDLValue> castToQDLValues(Set<Object> values)

castToQDLValueList

public static List<QDLValue> castToQDLValueList(Object[] values)

castToQDLValues

public static QDLValue[] castToQDLValues(Object[] values)

compareTo
```
public int compareTo(QDLValue qdlValue)
```
Specified by:

compareTo in interface Comparable<QDLValue>

isScalar
```
public boolean isScalar()
```

Class QDLValue

Field Summary

Fields inherited from interface org.qdl_lang.variables.Constants

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

longValue

booleanValue

decimalValue

stringValue

moduleValue

functionValue

dyadicFunctionValue

axisValue

setValue

stemValue

nullValue

Constructor Detail

QDLValue

Method Detail

getValue

setValue

hasValue

getType

isAxisRestriction

isBoolean

isDecimal

isDyadicFunction

isFunction

isList

isListOrStem

isLong

isModule

isNull

isSet

isStem

isString

isAllIndices

asBoolean

asDecimal

asStem

asString

asNull

asSet

asModule

asLong

asFunction

asDyadicFunction

asAxisExpression

toString

equals

hashCode

getInputForm

getNullValue

asQDLValue

asJavaValue

castToJavaValues

castToJavaValues

castToQDLValues

castToQDLValues

castToQDLValues

castToQDLValueList

castToQDLValues

compareTo

isScalar