com.github.protobufel.el

Class BeanELResolverEx

java.lang.Object

javax.el.ELResolver

javax.el.BeanELResolver

com.github.protobufel.el.BeanELResolverEx

public class BeanELResolverEx
extends javax.el.BeanELResolver

A BeanELResolver with advanced handling of the bean's overloaded methods. Consults with the base's BeanInfo, if present, to better handle overloading methods' ambiguity - the BeanInfo declared methods are in preference to the rest.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BeanELResolverEx.StaticMethodCompareStrategy
static class	BeanELResolverEx.SuitableMethodComparator

Field Summary

Fields

Modifier and Type	Field and Description
protected static java.util.Comparator<java.lang.reflect.Method>	DEFAULT_SUITABLE_METHOD_COMPARATOR

Fields inherited from class javax.el.ELResolver

RESOLVABLE_AT_DESIGN_TIME, TYPE

Constructor Summary

Constructors

Constructor and Description
BeanELResolverEx()
BeanELResolverEx(java.util.Comparator<java.lang.reflect.Method> suitableMethodComparator)

Method Summary

Modifier and Type	Method and Description
java.lang.String[]	addBeanInfoSearchPath(java.lang.String[] additionalBeanInfoPath)
protected <T> java.lang.reflect.Method	findBeanInfoCandidate(int paramCount, java.lang.String methodName, java.util.Map<java.lang.String,java.util.List<java.beans.MethodDescriptor>> methodDescriptors, boolean staticOnly)
protected <T> java.lang.reflect.Method	findBeanInfoCandidate(int paramCount, java.lang.String methodName, java.beans.MethodDescriptor[] methodDescriptors, boolean staticOnly)
protected java.lang.reflect.Method	findMethod(java.lang.Class<?> klass, java.lang.String methodName, java.lang.Class<?>[] paramTypes, java.lang.Object[] params, boolean staticOnly)
protected java.lang.reflect.Method	findMethod(java.lang.String methodName, java.lang.Class<?>[] paramTypes, java.lang.Object[] params, boolean staticOnly, java.util.Map<java.lang.String,java.util.List<java.beans.MethodDescriptor>> methodDescriptors)
protected java.lang.reflect.Method	findMethod(java.lang.String methodName, java.lang.Class<?>[] paramTypes, java.lang.Object[] params, boolean staticOnly, java.beans.MethodDescriptor[] methodDescriptors)
protected java.lang.reflect.Method	findMethodOrThrow(java.lang.Class<?> klass, java.lang.String methodName, java.lang.Class<?>[] paramTypes, java.lang.Object[] params, boolean staticOnly)
protected java.lang.reflect.Method	findMethodOrThrow(java.lang.String methodName, java.lang.Class<?>[] paramTypes, java.lang.Object[] params, boolean staticOnly, java.util.Map<java.lang.String,java.util.List<java.beans.MethodDescriptor>> methodDescriptors)
protected java.lang.reflect.Method	findMethodOrThrow(java.lang.String methodName, java.lang.Class<?>[] paramTypes, java.lang.Object[] params, boolean staticOnly, java.beans.MethodDescriptor[] methodDescriptors)
java.beans.BeanInfo	getBeanInfo(java.lang.Object base, java.lang.String... additionalBeanInfoPath)
java.beans.MethodDescriptor[]	getMethodDescriptors(javax.el.ELContext context, java.lang.Object base, java.lang.String... additionalBeanInfoPath)
java.lang.Object	invoke(javax.el.ELContext context, java.lang.Object base, java.lang.Object method, java.lang.Class<?>[] paramTypes, java.lang.Object[] params) Invokes the method considering the base's BeanInfo class' MethodDescriptors.
java.lang.Object	invokeIfBeanInfoOnly(javax.el.ELContext context, java.lang.Object base, java.lang.Object method, java.lang.Class<?>[] paramTypes, java.lang.Object[] params)
java.lang.Object	invokeIfBeanInfoOnly(javax.el.ELContext context, java.lang.Object base, java.lang.Object method, java.lang.Class<?>[] paramTypes, java.lang.Object[] params, java.util.Map<java.lang.String,java.util.List<java.beans.MethodDescriptor>> methodDescriptors)
java.lang.Object	invokeOnInterface(javax.el.ELContext context, java.lang.Class<?> baseInterface, java.lang.Object base, java.lang.Object method, java.lang.Class<?>[] paramTypes, java.lang.Object[] params)
protected <T> boolean	isMethodCandidate(java.lang.reflect.Method method, java.lang.String name, T[] params, boolean staticOnly, boolean isParamTypes)

Methods inherited from class javax.el.BeanELResolver

getCommonPropertyType, getFeatureDescriptors, getType, getValue, isReadOnly, setValue

Methods inherited from class javax.el.ELResolver

convertToType

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_SUITABLE_METHOD_COMPARATOR

protected static final java.util.Comparator<java.lang.reflect.Method> DEFAULT_SUITABLE_METHOD_COMPARATOR

Constructor Detail

BeanELResolverEx

public BeanELResolverEx()

BeanELResolverEx

public BeanELResolverEx(java.util.Comparator<java.lang.reflect.Method> suitableMethodComparator)

Method Detail

invoke

public java.lang.Object invoke(javax.el.ELContext context,
                               java.lang.Object base,
                               java.lang.Object method,
                               java.lang.Class<?>[] paramTypes,
                               java.lang.Object[] params)

Invokes the method considering the base's BeanInfo class' MethodDescriptors. Resolves method overloads by looking at the MethodDescriptors first and only then the base's class itself, choosing the most specific candidate.

Overrides:

invoke in class javax.el.BeanELResolver

invokeOnInterface

public java.lang.Object invokeOnInterface(javax.el.ELContext context,
                                          java.lang.Class<?> baseInterface,
                                          java.lang.Object base,
                                          java.lang.Object method,
                                          java.lang.Class<?>[] paramTypes,
                                          java.lang.Object[] params)

invokeIfBeanInfoOnly

public java.lang.Object invokeIfBeanInfoOnly(javax.el.ELContext context,
                                             java.lang.Object base,
                                             java.lang.Object method,
                                             java.lang.Class<?>[] paramTypes,
                                             java.lang.Object[] params)

invokeIfBeanInfoOnly

public java.lang.Object invokeIfBeanInfoOnly(javax.el.ELContext context,
                                             java.lang.Object base,
                                             java.lang.Object method,
                                             java.lang.Class<?>[] paramTypes,
                                             java.lang.Object[] params,
                                             java.util.Map<java.lang.String,java.util.List<java.beans.MethodDescriptor>> methodDescriptors)

findMethodOrThrow

protected java.lang.reflect.Method findMethodOrThrow(java.lang.String methodName,
                                                     java.lang.Class<?>[] paramTypes,
                                                     java.lang.Object[] params,
                                                     boolean staticOnly,
                                                     java.beans.MethodDescriptor[] methodDescriptors)

findMethodOrThrow

protected java.lang.reflect.Method findMethodOrThrow(java.lang.String methodName,
                                                     java.lang.Class<?>[] paramTypes,
                                                     java.lang.Object[] params,
                                                     boolean staticOnly,
                                                     java.util.Map<java.lang.String,java.util.List<java.beans.MethodDescriptor>> methodDescriptors)

findMethodOrThrow

protected java.lang.reflect.Method findMethodOrThrow(java.lang.Class<?> klass,
                                                     java.lang.String methodName,
                                                     java.lang.Class<?>[] paramTypes,
                                                     java.lang.Object[] params,
                                                     boolean staticOnly)

findMethod

protected java.lang.reflect.Method findMethod(java.lang.Class<?> klass,
                                              java.lang.String methodName,
                                              java.lang.Class<?>[] paramTypes,
                                              java.lang.Object[] params,
                                              boolean staticOnly)

findMethod

protected java.lang.reflect.Method findMethod(java.lang.String methodName,
                                              java.lang.Class<?>[] paramTypes,
                                              java.lang.Object[] params,
                                              boolean staticOnly,
                                              java.beans.MethodDescriptor[] methodDescriptors)

findMethod

protected java.lang.reflect.Method findMethod(java.lang.String methodName,
                                              java.lang.Class<?>[] paramTypes,
                                              java.lang.Object[] params,
                                              boolean staticOnly,
                                              java.util.Map<java.lang.String,java.util.List<java.beans.MethodDescriptor>> methodDescriptors)

findBeanInfoCandidate

protected <T> java.lang.reflect.Method findBeanInfoCandidate(int paramCount,
                                                             java.lang.String methodName,
                                                             java.beans.MethodDescriptor[] methodDescriptors,
                                                             boolean staticOnly)

findBeanInfoCandidate

protected <T> java.lang.reflect.Method findBeanInfoCandidate(int paramCount,
                                                             java.lang.String methodName,
                                                             java.util.Map<java.lang.String,java.util.List<java.beans.MethodDescriptor>> methodDescriptors,
                                                             boolean staticOnly)

isMethodCandidate

protected <T> boolean isMethodCandidate(java.lang.reflect.Method method,
                                        java.lang.String name,
                                        T[] params,
                                        boolean staticOnly,
                                        boolean isParamTypes)

addBeanInfoSearchPath

public java.lang.String[] addBeanInfoSearchPath(java.lang.String[] additionalBeanInfoPath)

getBeanInfo

public java.beans.BeanInfo getBeanInfo(java.lang.Object base,
                                       java.lang.String... additionalBeanInfoPath)

getMethodDescriptors

public java.beans.MethodDescriptor[] getMethodDescriptors(javax.el.ELContext context,
                                                          java.lang.Object base,
                                                          java.lang.String... additionalBeanInfoPath)