Package com.github.jknack.handlebars

Interface ValueResolver

All Known Implementing Classes:

FieldValueResolver, JavaBeanValueResolver, MapValueResolver, MemberValueResolver, MethodValueResolver

public interface ValueResolver

A hook interface for resolving values from the context stack.

Since:

0.1.1

Field Summary

Fields

Modifier and Type	Field	Description
static java.lang.Object	UNRESOLVED	A mark object.

Method Summary

Modifier and Type	Method	Description
static java.util.List<ValueResolver>	defaultValueResolvers()	Default value resolvers.
java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.Object>>	propertySet(java.lang.Object context)	List all the properties and their values for the given object.
java.lang.Object	resolve(java.lang.Object context)	Resolve the the context object by optionally converting the value if necessary.
java.lang.Object	resolve(java.lang.Object context, java.lang.String name)	Resolve the attribute's name in the context object.

Field Detail

UNRESOLVED

static final java.lang.Object UNRESOLVED

A mark object.

Method Detail

resolve

java.lang.Object resolve(java.lang.Object context,
                         java.lang.String name)

Resolve the attribute's name in the context object. If a UNRESOLVED is returned, the context stack will continue with the next value resolver in the chain.

Parameters:

context - The context object. Not null.

name - The attribute's name. Not null.

Returns:

A UNRESOLVED is returned, the context stack will continue with the next value resolver in the chain. Otherwise, it returns the associated value.

resolve

java.lang.Object resolve(java.lang.Object context)

Resolve the the context object by optionally converting the value if necessary. If a UNRESOLVED is returned, the context stack will continue with the next value resolver in the chain.

Parameters:

context - The context object. Not null.

Returns:

A UNRESOLVED is returned, the context stack will continue with the next value resolver in the chain. Otherwise, it returns the associated value.

propertySet

java.util.Set<java.util.Map.Entry<java.lang.String,java.lang.Object>> propertySet(java.lang.Object context)

List all the properties and their values for the given object.

Parameters:

context - The context object. Not null.

Returns:

All the properties and their values for the given object.

defaultValueResolvers

static java.util.List<ValueResolver> defaultValueResolvers()

Default value resolvers. Including: - MapValueResolver - JavaBeanValueResolver - MethodValueResolver. On Java 14 or higher.

Returns:

Immutable list of value resolvers.