io.virtdata.core

Class BindingsTemplate

java.lang.Object

io.virtdata.core.BindingsTemplate

public class BindingsTemplate
extends Object

Maps a set of parameters on an associated object of type T to specifiers for data mappers. Allows for easy construction of DataMapperBindings when in the proper thread scope.

The user is required to call @{link resolveBindings} when in the scope that the resulting bindings will be used.

Constructor Summary

Constructors

Constructor and Description
BindingsTemplate() Create a bindings template with the default VirtDataLibrary.
BindingsTemplate(VirtDataLibrary library) Create an empty bindings template with a user-provided VirtDataLibrary.
BindingsTemplate(VirtDataLibrary library, Map<String,String> specs) Create a bindings template with a user-provided VirtDataLibrary and a map of binding specs

Method Summary

Modifier and Type	Method and Description
void	addFieldBinding(String bindPointName, String genSpec) Add a named binding specifier to the template
void	addFieldBindings(Map<String,String> bindPairs) Add multiple named bindings to the template
List<String>	getBindPointNames()
List<String>	getDataMapperSpecs()
Bindings	resolveBindings() Use the data mapping library and the specifier to create instances of data mapping functions.
String	toString()
String	toString(Object[] values)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BindingsTemplate

public BindingsTemplate(VirtDataLibrary library)

Create an empty bindings template with a user-provided VirtDataLibrary.

Parameters:

library - a user-provided instance of VirtDataLibrary

BindingsTemplate

public BindingsTemplate(VirtDataLibrary library,
                        Map<String,String> specs)

Create a bindings template with a user-provided VirtDataLibrary and a map of binding specs

Parameters:

library - a user-provided instance of a VirtDataLibrary

specs - an map of binding specs

BindingsTemplate

public BindingsTemplate()

Create a bindings template with the default VirtDataLibrary.

Method Detail

addFieldBinding

public void addFieldBinding(String bindPointName,
                            String genSpec)

Add a named binding specifier to the template

Parameters:

bindPointName - the name associated with the binding specifier

genSpec - the binding specifier

addFieldBindings

public void addFieldBindings(Map<String,String> bindPairs)

Add multiple named bindings to the template

Parameters:

bindPairs - A map of named binding specifiers

resolveBindings

public Bindings resolveBindings()

Use the data mapping library and the specifier to create instances of data mapping functions. If you need thread-aware mapping, be sure to call this in the proper thread. Each time this method is called, it creates a new instance.

Returns:

A set of bindings that can be used to yield mapped data values later.

getBindPointNames

public List<String> getBindPointNames()

getDataMapperSpecs

public List<String> getDataMapperSpecs()

toString

public String toString()

Overrides:

toString in class Object

toString

public String toString(Object[] values)