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public interface IValueConverter<Type>
A ValueConverter
is used to create a semantic value from
an input string or node and vice versa.
Nested Class Summary | |
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static interface |
IValueConverter.RuleSpecific
Value converters that rely on information about the actual rule that is converted, may implement this interface. |
Field Summary | |
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static IValueConverter<? extends java.lang.Object> |
NO_OP_CONVERTER
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Method Summary | |
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java.lang.String |
toString(Type value)
Transforms the given value to a string that is conformant to the expected terminal or data type rule. |
Type |
toValue(java.lang.String string,
INode node)
Creates a value from the given input. |
Field Detail |
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static final IValueConverter<? extends java.lang.Object> NO_OP_CONVERTER
Method Detail |
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Type toValue(java.lang.String string, INode node) throws ValueConverterException
Creates a value from the given input. The input is conformant to a data type or terminal rule.
The given string
or node
may be null but not both of them.
string
- the string that was inferred from the node. Usually the node's text
but may be reduced to the parts of the node that are not
hidden
.node
- the parsed node including hidden parts.
null
.
ValueConverterException
- indicates that the string or node did not fulfil
the expected format.java.lang.String toString(Type value) throws ValueConverterException
value
- the to-be-transformed value
ValueConverterException
- indicates that the value cannot be converted to a valid string.
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