org.modeshape.graph.query.model
Interface TypeSystem

All Known Implementing Classes:
ValueTypeSystem

@Immutable
public interface TypeSystem

An interface that defines the value types used in tuples.


Nested Class Summary
static interface TypeSystem.TypeFactory<T>
          Factory interface for creating values from strings.
 
Method Summary
 String asString(Object value)
          Get the string representation of the supplied value, using the most appropriate factory given the value.
 TypeSystem.TypeFactory<?> getBinaryFactory()
          Get the type factory for binary objects.
 TypeSystem.TypeFactory<Boolean> getBooleanFactory()
          Get the type factory for boolean types.
 String getCompatibleType(String type1, String type2)
          Get the type that is compatible with both of the supplied types.
 TypeSystem.TypeFactory<?> getDateTimeFactory()
          Get the type factory for date-time objects.
 Comparator<Object> getDefaultComparator()
          Get the comparator that should be used by default.
 String getDefaultType()
          Get the name of the type that is used by default.
 TypeSystem.TypeFactory<Double> getDoubleFactory()
          Get the type factory for double types.
 TypeSystem.TypeFactory<Long> getLongFactory()
          Get the type factory for long types.
 TypeSystem.TypeFactory<?> getPathFactory()
          Get the type factory for path objects.
 TypeSystem.TypeFactory<?> getReferenceFactory()
          Get the type factory for references objects.
 TypeSystem.TypeFactory<String> getStringFactory()
          Get the type factory for string types.
 TypeSystem.TypeFactory<?> getTypeFactory(Object prototype)
          Get the type factory for the type denoted by the supplied prototype value.
 TypeSystem.TypeFactory<?> getTypeFactory(String typeName)
          Get the type factory given the name of the type.
 Set<String> getTypeNames()
          Get the names of the supported types.
 

Method Detail

getTypeFactory

TypeSystem.TypeFactory<?> getTypeFactory(String typeName)
Get the type factory given the name of the type.

Parameters:
typeName - the name of the type
Returns:
the type factory, or null if there is no such type in this system

getTypeFactory

TypeSystem.TypeFactory<?> getTypeFactory(Object prototype)
Get the type factory for the type denoted by the supplied prototype value.

Parameters:
prototype - the value whose type is to be identified
Returns:
the type factory, or null if there is no such type in this system

getBooleanFactory

TypeSystem.TypeFactory<Boolean> getBooleanFactory()
Get the type factory for boolean types.

Returns:
the boolean factory; never null

getLongFactory

TypeSystem.TypeFactory<Long> getLongFactory()
Get the type factory for long types.

Returns:
the long factory; never null

getStringFactory

TypeSystem.TypeFactory<String> getStringFactory()
Get the type factory for string types.

Returns:
the string factory; never null

getDoubleFactory

TypeSystem.TypeFactory<Double> getDoubleFactory()
Get the type factory for double types.

Returns:
the double factory; never null

getDateTimeFactory

TypeSystem.TypeFactory<?> getDateTimeFactory()
Get the type factory for date-time objects.

Returns:
the date-time factory, or null if this type system doesn't support date-time objects

getPathFactory

TypeSystem.TypeFactory<?> getPathFactory()
Get the type factory for path objects.

Returns:
the path factory, or null if this type system doesn't support path objects

getReferenceFactory

TypeSystem.TypeFactory<?> getReferenceFactory()
Get the type factory for references objects.

Returns:
the reference factory, or null if this type system doesn't support reference objects

getBinaryFactory

TypeSystem.TypeFactory<?> getBinaryFactory()
Get the type factory for binary objects.

Returns:
the binary factory, or null if this type system doesn't support binary objects

getDefaultType

String getDefaultType()
Get the name of the type that is used by default.

Returns:
the default type name; never null

getDefaultComparator

Comparator<Object> getDefaultComparator()
Get the comparator that should be used by default.

Returns:
the default comparator; never null

getTypeNames

Set<String> getTypeNames()
Get the names of the supported types.

Returns:
the immutable set of the uppercase names of the types; never null

asString

String asString(Object value)
Get the string representation of the supplied value, using the most appropriate factory given the value.

Parameters:
value - the value
Returns:
the string representation; never null

getCompatibleType

String getCompatibleType(String type1,
                         String type2)
Get the type that is compatible with both of the supplied types.

Parameters:
type1 - the first type; may be null
type2 - the second type; may be null
Returns:
the compatible type; never null


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