PropertyAccessor (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

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org.springframework.beans
Interface PropertyAccessor

All Known Subinterfaces:: BeanWrapper, ConfigurablePropertyAccessor

All Known Implementing Classes:: AbstractPropertyAccessor, BeanWrapperImpl, DirectFieldAccessor

public interface PropertyAccessor

Common interface for classes that can access named properties (such as bean properties of an object or fields in an object) Serves as base interface for BeanWrapper.

Since:: 1.1
Author:: Juergen Hoeller
See Also:: BeanWrapper

Field Summary

static String NESTED_PROPERTY_SEPARATOR
          Path separator for nested properties.

static char NESTED_PROPERTY_SEPARATOR_CHAR


static String PROPERTY_KEY_PREFIX
          Marker that indicates the start of a property key for an indexed or mapped property like "person.addresses[0]".

static char PROPERTY_KEY_PREFIX_CHAR


static String PROPERTY_KEY_SUFFIX
          Marker that indicates the end of a property key for an indexed or mapped property like "person.addresses[0]".

static char PROPERTY_KEY_SUFFIX_CHAR


Method Summary

Class getPropertyType(String propertyName)
          Determine the property type for the specified property, either checking the property descriptor or checking the value in case of an indexed or mapped element.

Object getPropertyValue(String propertyName)
          Get the current value of the specified property.

boolean isReadableProperty(String propertyName)
          Determine whether the specified property is readable.

boolean isWritableProperty(String propertyName)
          Determine whether the specified property is writable.

void setPropertyValue(PropertyValue pv)
          Set the specified value as current property value.

void setPropertyValue(String propertyName, Object value)
          Set the specified value as current property value.

void setPropertyValues(Map map)
          Perform a batch update from a Map.

void setPropertyValues(PropertyValues pvs)
          The preferred way to perform a batch update.

void setPropertyValues(PropertyValues pvs, boolean ignoreUnknown)
          Perform a batch update with more control over behavior.

void setPropertyValues(PropertyValues pvs, boolean ignoreUnknown, boolean ignoreInvalid)
          Perform a batch update with full control over behavior.

Field Summary
`static String`	`NESTED_PROPERTY_SEPARATOR` Path separator for nested properties.
`static char`	`NESTED_PROPERTY_SEPARATOR_CHAR`
`static String`	`PROPERTY_KEY_PREFIX` Marker that indicates the start of a property key for an indexed or mapped property like "person.addresses[0]".
`static char`	`PROPERTY_KEY_PREFIX_CHAR`
`static String`	`PROPERTY_KEY_SUFFIX` Marker that indicates the end of a property key for an indexed or mapped property like "person.addresses[0]".
`static char`	`PROPERTY_KEY_SUFFIX_CHAR`

Method Summary
`Class`	`getPropertyType(String propertyName)` Determine the property type for the specified property, either checking the property descriptor or checking the value in case of an indexed or mapped element.
`Object`	`getPropertyValue(String propertyName)` Get the current value of the specified property.
`boolean`	`isReadableProperty(String propertyName)` Determine whether the specified property is readable.
`boolean`	`isWritableProperty(String propertyName)` Determine whether the specified property is writable.
`void`	`setPropertyValue(PropertyValue pv)` Set the specified value as current property value.
`void`	`setPropertyValue(String propertyName, Object value)` Set the specified value as current property value.
`void`	`setPropertyValues(Map map)` Perform a batch update from a Map.
`void`	`setPropertyValues(PropertyValues pvs)` The preferred way to perform a batch update.
`void`	`setPropertyValues(PropertyValues pvs, boolean ignoreUnknown)` Perform a batch update with more control over behavior.
`void`	`setPropertyValues(PropertyValues pvs, boolean ignoreUnknown, boolean ignoreInvalid)` Perform a batch update with full control over behavior.

Field Detail

NESTED_PROPERTY_SEPARATOR

static final String NESTED_PROPERTY_SEPARATOR

Path separator for nested properties. Follows normal Java conventions: getFoo().getBar() would be "foo.bar".

See Also:: Constant Field Values

NESTED_PROPERTY_SEPARATOR_CHAR

static final char NESTED_PROPERTY_SEPARATOR_CHAR

See Also:: Constant Field Values

PROPERTY_KEY_PREFIX

static final String PROPERTY_KEY_PREFIX

Marker that indicates the start of a property key for an indexed or mapped property like "person.addresses[0]".

See Also:: Constant Field Values

PROPERTY_KEY_PREFIX_CHAR

static final char PROPERTY_KEY_PREFIX_CHAR

See Also:: Constant Field Values

PROPERTY_KEY_SUFFIX

static final String PROPERTY_KEY_SUFFIX

Marker that indicates the end of a property key for an indexed or mapped property like "person.addresses[0]".

See Also:: Constant Field Values

PROPERTY_KEY_SUFFIX_CHAR

static final char PROPERTY_KEY_SUFFIX_CHAR

See Also:: Constant Field Values

Method Detail

isReadableProperty

boolean isReadableProperty(String propertyName)

Determine whether the specified property is readable.

Returns false if the property doesn't exist.

Parameters:: propertyName - the property to check (may be a nested path and/or an indexed/mapped property)
Returns:: whether the property is readable

isWritableProperty

boolean isWritableProperty(String propertyName)

Determine whether the specified property is writable.

Returns false if the property doesn't exist.

Parameters:: propertyName - the property to check (may be a nested path and/or an indexed/mapped property)
Returns:: whether the property is writable

getPropertyType

Class getPropertyType(String propertyName)
                      throws BeansException

Determine the property type for the specified property, either checking the property descriptor or checking the value in case of an indexed or mapped element.

Parameters:: propertyName - the property to check (may be a nested path and/or an indexed/mapped property)
Returns:: the property type for the particular property, or null if not determinable
Throws:: InvalidPropertyException - if there is no such property or if the property isn't readable; PropertyAccessException - if the property was valid but the accessor method failed; BeansException

getPropertyValue

Object getPropertyValue(String propertyName)
                        throws BeansException

Get the current value of the specified property.

Parameters:: propertyName - the name of the property to get the value of (may be a nested path and/or an indexed/mapped property)
Returns:: the value of the property
Throws:: InvalidPropertyException - if there is no such property or if the property isn't readable; PropertyAccessException - if the property was valid but the accessor method failed; BeansException

setPropertyValue

void setPropertyValue(String propertyName,
                      Object value)
                      throws BeansException

Set the specified value as current property value.

Parameters:: propertyName - the name of the property to set the value of (may be a nested path and/or an indexed/mapped property); value - the new value
Throws:: InvalidPropertyException - if there is no such property or if the property isn't writable; PropertyAccessException - if the property was valid but the accessor method failed or a type mismatch occured; BeansException

setPropertyValue

void setPropertyValue(PropertyValue pv)
                      throws BeansException

Set the specified value as current property value.

Parameters:: pv - an object containing the new property value
Throws:: InvalidPropertyException - if there is no such property or if the property isn't writable; PropertyAccessException - if the property was valid but the accessor method failed or a type mismatch occured; BeansException

setPropertyValues

void setPropertyValues(Map map)
                       throws BeansException

Perform a batch update from a Map.

Bulk updates from PropertyValues are more powerful: This method is provided for convenience. Behavior will be identical to that of the setPropertyValues(PropertyValues) method.

Parameters:: map - Map to take properties from. Contains property value objects, keyed by property name
Throws:: InvalidPropertyException - if there is no such property or if the property isn't writable; PropertyBatchUpdateException - if one or more PropertyAccessExceptions occured for specific properties during the batch update. This exception bundles all individual PropertyAccessExceptions. All other properties will have been successfully updated.; BeansException

setPropertyValues

void setPropertyValues(PropertyValues pvs)
                       throws BeansException

The preferred way to perform a batch update.

Note that performing a batch update differs from performing a single update, in that an implementation of this class will continue to update properties if a recoverable error (such as a type mismatch, but not an invalid field name or the like) is encountered, throwing a PropertyBatchUpdateException containing all the individual errors. This exception can be examined later to see all binding errors. Properties that were successfully updated remain changed.

Does not allow unknown fields or invalid fields.

Parameters:: pvs - PropertyValues to set on the target object
Throws:: InvalidPropertyException - if there is no such property or if the property isn't writable; PropertyBatchUpdateException - if one or more PropertyAccessExceptions occured for specific properties during the batch update. This exception bundles all individual PropertyAccessExceptions. All other properties will have been successfully updated.; BeansException
See Also:: setPropertyValues(PropertyValues, boolean, boolean)

setPropertyValues

void setPropertyValues(PropertyValues pvs,
                       boolean ignoreUnknown)
                       throws BeansException

Perform a batch update with more control over behavior.

Parameters:: pvs - PropertyValues to set on the target object; ignoreUnknown - should we ignore unknown properties (not found in the bean)
Throws:: InvalidPropertyException - if there is no such property or if the property isn't writable; PropertyBatchUpdateException - if one or more PropertyAccessExceptions occured for specific properties during the batch update. This exception bundles all individual PropertyAccessExceptions. All other properties will have been successfully updated.; BeansException
See Also:: setPropertyValues(PropertyValues, boolean, boolean)

setPropertyValues

void setPropertyValues(PropertyValues pvs,
                       boolean ignoreUnknown,
                       boolean ignoreInvalid)
                       throws BeansException

Perform a batch update with full control over behavior.

Parameters:: pvs - PropertyValues to set on the target object; ignoreUnknown - should we ignore unknown properties (not found in the bean); ignoreInvalid - should we ignore invalid properties (found but not accessible)
Throws:: InvalidPropertyException - if there is no such property or if the property isn't writable; PropertyBatchUpdateException - if one or more PropertyAccessExceptions occured for specific properties during the batch update. This exception bundles all individual PropertyAccessExceptions. All other properties will have been successfully updated.; BeansException

Overview

Package

Class

Use

Tree

Deprecated

Index

Help

The Spring Framework

PREV CLASS NEXT CLASS

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SUMMARY: NESTED | FIELD | CONSTR | METHOD

DETAIL: FIELD | CONSTR | METHOD

PropertyAccessor (Spring Framework API 2.1) - Spring Framework 2.1.0 API 文档英文版

org.springframework.beans Interface PropertyAccessor

NESTED_PROPERTY_SEPARATOR

NESTED_PROPERTY_SEPARATOR_CHAR

PROPERTY_KEY_PREFIX

PROPERTY_KEY_PREFIX_CHAR

PROPERTY_KEY_SUFFIX

PROPERTY_KEY_SUFFIX_CHAR

isReadableProperty

isWritableProperty

getPropertyType

getPropertyValue

setPropertyValue

setPropertyValue

setPropertyValues

setPropertyValues

setPropertyValues

setPropertyValues

org.springframework.beans
Interface PropertyAccessor