- java.lang.Object
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- org.praxislive.core.Value
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- org.praxislive.core.types.PReference
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public final class PReference extends Value
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Nested Class Summary
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Nested classes/interfaces inherited from class org.praxislive.core.Value
Value.Type<T extends Value>
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Field Summary
Fields Modifier and Type Field Description static String
REFERENCE_TYPE
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description <T> Optional<T>
as(Class<T> cls)
boolean
equals(Object obj)
Values must override the default equals method.boolean
equivalent(Value arg)
Indicates whether some other Value is equivalent to this one.static Optional<PReference>
from(Value arg)
int
hashCode()
Values must override the default hashcode method.static ArgumentInfo
info()
static ArgumentInfo
info(Class<?> clas)
boolean
isEmpty()
Check whether this Value is an empty value and has a zero length string representation.static PReference
of(Object obj)
String
toString()
Values must override the default method to return a string representation that is immutable.
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Field Detail
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REFERENCE_TYPE
public static final String REFERENCE_TYPE
- See Also:
- Constant Field Values
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Method Detail
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toString
public String toString()
Description copied from class:Value
Values must override the default method to return a string representation that is immutable.
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hashCode
public int hashCode()
Description copied from class:Value
Values must override the default hashcode method.
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equals
public boolean equals(Object obj)
Description copied from class:Value
Values must override the default equals method. This method should only returntrue
if the supplied Object is of the same type as the implementing Value. Values of an unknown type should be coerced before calling this method. This method does not have to guarantee thatthis.equals(that) == this.toString().equals(that.toString())
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equivalent
public boolean equivalent(Value arg)
Description copied from class:Value
Indicates whether some other Value is equivalent to this one. UnlikeValue.equals(java.lang.Object)
this method is not symmetric - a value of a different type might be equivalent to this without the other type considering the reverse to be true.The default implementation uses identity or String equality.
- Overrides:
equivalent
in classValue
- Parameters:
arg
- value to test for equivalence- Returns:
- true if value is equivalent to this
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isEmpty
public boolean isEmpty()
Description copied from class:Value
Check whether this Value is an empty value and has a zero length string representation. Subclasses may wish to override this for efficiency if the String representation is lazily created.
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of
public static PReference of(Object obj)
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from
public static Optional<PReference> from(Value arg)
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info
public static ArgumentInfo info()
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info
public static ArgumentInfo info(Class<?> clas)
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