Package com.github.mustachejava.reflect

Class ReflectionObjectHandler

java.lang.Object

com.github.mustachejava.reflect.BaseObjectHandler

com.github.mustachejava.reflect.ReflectionObjectHandler

All Implemented Interfaces:

ObjectHandler

public class ReflectionObjectHandler
extends BaseObjectHandler

Lookup objects using reflection and execute them the same way. User: sam Date: 7/24/11 Time: 3:02 PM

Field Summary

Fields

Modifier and Type	Field	Description
private static Guard[]	EMPTY_GUARDS
private static Wrapper[]	EMPTY_WRAPPERS
protected static java.lang.reflect.Method	MAP_METHOD

Constructor Summary

Constructors

Constructor	Description
ReflectionObjectHandler()

Method Summary

Modifier and Type	Method	Description
protected boolean	areMethodsAccessible(java.util.Map<?,?> map)
Binding	createBinding(java.lang.String name, TemplateContext tc, Code code)	Each call site has its own binding to allow for fine grained caching without a separate parallel hierarchy of objects.
protected ClassGuard	createClassGuard(int i, java.lang.Object scope)
protected DepthGuard	createDepthGuard(int length)
protected DotGuard	createDotGuard(int i, java.lang.Object scope, java.lang.String lookup)
protected MapGuard	createMapGuard(int scopeIndex, Wrapper[] wrappers, java.lang.String name, boolean contains)
protected MissingWrapper	createMissingWrapper(java.lang.String name, java.util.List<Guard> guards)
protected NullGuard	createNullGuard()
protected WrappedGuard	createWrappedGuard(int i, java.util.List<Wrapper> wrappers, java.util.List<Guard> wrapperGuard)
protected Wrapper	createWrapper(int scopeIndex, Wrapper[] wrappers, java.util.List<? extends Guard> guard, java.lang.reflect.AccessibleObject member, java.lang.Object[] arguments)
Wrapper	find(java.lang.String name, java.util.List<java.lang.Object> scopes)	Find a value named "name" in the array of scopes in reverse order.
protected Wrapper	findWrapper(int scopeIndex, Wrapper[] wrappers, java.util.List<Guard> guards, java.lang.Object scope, java.lang.String name)	Find a wrapper given the current context.
static java.lang.Object	unwrap(ObjectHandler oh, int scopeIndex, Wrapper[] wrappers, java.util.List<java.lang.Object> scopes)

Methods inherited from class com.github.mustachejava.reflect.BaseObjectHandler

checkClass, checkField, checkMethod, coerce, falsey, findMember, getField, getMethod, iterate, stringify

Methods inherited from class java.lang.Object

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

Field Detail

EMPTY_WRAPPERS

private static final Wrapper[] EMPTY_WRAPPERS

EMPTY_GUARDS

private static final Guard[] EMPTY_GUARDS

MAP_METHOD

protected static final java.lang.reflect.Method MAP_METHOD

Constructor Detail

ReflectionObjectHandler

public ReflectionObjectHandler()

Method Detail

unwrap

public static java.lang.Object unwrap(ObjectHandler oh,
                                      int scopeIndex,
                                      Wrapper[] wrappers,
                                      java.util.List<java.lang.Object> scopes)
                               throws GuardException

Throws:

GuardException

find

public Wrapper find(java.lang.String name,
                    java.util.List<java.lang.Object> scopes)

Description copied from interface: ObjectHandler

Find a value named "name" in the array of scopes in reverse order.

Parameters:

name - the variable name

scopes - the ordered list of scopes

Returns:

a wrapper that can be used to extract a value

findWrapper

protected Wrapper findWrapper(int scopeIndex,
                              Wrapper[] wrappers,
                              java.util.List<Guard> guards,
                              java.lang.Object scope,
                              java.lang.String name)

Find a wrapper given the current context. If not found, return null.

Parameters:

scopeIndex - the index into the scope array

wrappers - the current set of wrappers to get here

guards - the list of guards used to find this

scope - the current scope

name - the name in the scope

Returns:

null if not found, otherwise a wrapper for this scope and name

createMissingWrapper

protected MissingWrapper createMissingWrapper(java.lang.String name,
                                              java.util.List<Guard> guards)

createDotGuard

protected DotGuard createDotGuard(int i,
                                  java.lang.Object scope,
                                  java.lang.String lookup)

createWrappedGuard

protected WrappedGuard createWrappedGuard(int i,
                                          java.util.List<Wrapper> wrappers,
                                          java.util.List<Guard> wrapperGuard)

createNullGuard

protected NullGuard createNullGuard()

createDepthGuard

protected DepthGuard createDepthGuard(int length)

createClassGuard

protected ClassGuard createClassGuard(int i,
                                      java.lang.Object scope)

createMapGuard

protected MapGuard createMapGuard(int scopeIndex,
                                  Wrapper[] wrappers,
                                  java.lang.String name,
                                  boolean contains)

createWrapper

protected Wrapper createWrapper(int scopeIndex,
                                Wrapper[] wrappers,
                                java.util.List<? extends Guard> guard,
                                java.lang.reflect.AccessibleObject member,
                                java.lang.Object[] arguments)

createBinding

public Binding createBinding(java.lang.String name,
                             TemplateContext tc,
                             Code code)

Description copied from interface: ObjectHandler

Each call site has its own binding to allow for fine grained caching without a separate parallel hierarchy of objects.

Specified by:

createBinding in interface ObjectHandler

Specified by:

createBinding in class BaseObjectHandler

Parameters:

name - the name that we bound

tc - the textual context of the binding site

code - the code that was bound

Returns:

the binding

areMethodsAccessible

protected boolean areMethodsAccessible(java.util.Map<?,?> map)