Package org.drools.core.base

Class ClassFieldReader

java.lang.Object

org.drools.core.base.ClassFieldReader

All Implemented Interfaces:

Externalizable, Serializable, InternalReadAccessor, ReadAccessor

public class ClassFieldReader
extends Object
implements Externalizable, InternalReadAccessor

This provides access to fields, and what their numerical index/object type is. This is basically a wrapper class around dynamically generated subclasses of BaseClassFieldExtractor, which allows serialization by regenerating the accessor classes when needed.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
ClassFieldReader()
ClassFieldReader(String className, String fieldName)

Method Summary

Modifier and Type	Method	Description
static String	decapitalizeFieldName(String name)	Utility method to take a string and convert it to normal Java variable name capitalization.
boolean	equals(Object obj)
AccessorKey	getAccessorKey()
BigDecimal	getBigDecimalValue(Object object)
BigDecimal	getBigDecimalValue(ReteEvaluator reteEvaluator, Object object)
BigInteger	getBigIntegerValue(Object object)
BigInteger	getBigIntegerValue(ReteEvaluator reteEvaluator, Object object)
boolean	getBooleanValue(Object object)
boolean	getBooleanValue(ReteEvaluator reteEvaluator, Object object)
byte	getByteValue(Object object)
byte	getByteValue(ReteEvaluator reteEvaluator, Object object)
char	getCharValue(Object object)
char	getCharValue(ReteEvaluator reteEvaluator, Object object)
String	getClassName()
double	getDoubleValue(Object object)
double	getDoubleValue(ReteEvaluator reteEvaluator, Object object)
Class<?>	getExtractToClass()
String	getExtractToClassName()
String	getFieldName()
float	getFloatValue(Object object)
float	getFloatValue(ReteEvaluator reteEvaluator, Object object)
int	getHashCode(Object object)
int	getHashCode(ReteEvaluator reteEvaluator, Object object)
int	getIndex()
int	getIntValue(Object object)
int	getIntValue(ReteEvaluator reteEvaluator, Object object)
long	getLongValue(Object object)
long	getLongValue(ReteEvaluator reteEvaluator, Object object)
Method	getNativeReadMethod()
String	getNativeReadMethodName()
short	getShortValue(Object object)
short	getShortValue(ReteEvaluator reteEvaluator, Object object)
Object	getValue(Object object)
Object	getValue(ReteEvaluator reteEvaluator, Object object)
ValueType	getValueType()
int	hashCode()
boolean	hasReadAccessor()
boolean	isGlobal()
boolean	isNullValue(Object object)
boolean	isNullValue(ReteEvaluator reteEvaluator, Object object)
boolean	isSelfReference()
void	readExternal(ObjectInput is)
void	setReadAccessor(InternalReadAccessor reader)
String	toString()
void	writeExternal(ObjectOutput out)

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

ClassFieldReader

public ClassFieldReader()

ClassFieldReader

public ClassFieldReader(String className,
                        String fieldName)

Method Detail

decapitalizeFieldName

public static String decapitalizeFieldName(String name)

Utility method to take a string and convert it to normal Java variable name capitalization. This normally means converting the first character from upper case to lower case, but in the (unusual) special case when there is more than one character and both the first and second characters are upper case, we leave it alone.

Thus "FooBah" becomes "fooBah" and "X" becomes "x", but "URL" stays as "URL". Taken from

Parameters:

name - The string to be decapitalized.

Returns:

The decapitalized version of the string.

writeExternal

public void writeExternal(ObjectOutput out)
                   throws IOException

Specified by:

writeExternal in interface Externalizable

Throws:

IOException

readExternal

public void readExternal(ObjectInput is)
                  throws ClassNotFoundException,
                         IOException

Specified by:

readExternal in interface Externalizable

Throws:

ClassNotFoundException

IOException

setReadAccessor

public void setReadAccessor(InternalReadAccessor reader)

getIndex

public int getIndex()

Specified by:

getIndex in interface ReadAccessor

getClassName

public String getClassName()

getFieldName

public String getFieldName()

hasReadAccessor

public boolean hasReadAccessor()

getValue

public Object getValue(ReteEvaluator reteEvaluator,
                       Object object)

Specified by:

getValue in interface InternalReadAccessor

getValueType

public ValueType getValueType()

Specified by:

getValueType in interface ReadAccessor

getExtractToClass

public Class<?> getExtractToClass()

Specified by:

getExtractToClass in interface ReadAccessor

getExtractToClassName

public String getExtractToClassName()

Specified by:

getExtractToClassName in interface ReadAccessor

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getBooleanValue

public boolean getBooleanValue(ReteEvaluator reteEvaluator,
                               Object object)

Specified by:

getBooleanValue in interface InternalReadAccessor

getByteValue

public byte getByteValue(ReteEvaluator reteEvaluator,
                         Object object)

Specified by:

getByteValue in interface InternalReadAccessor

getCharValue

public char getCharValue(ReteEvaluator reteEvaluator,
                         Object object)

Specified by:

getCharValue in interface InternalReadAccessor

getDoubleValue

public double getDoubleValue(ReteEvaluator reteEvaluator,
                             Object object)

Specified by:

getDoubleValue in interface InternalReadAccessor

getFloatValue

public float getFloatValue(ReteEvaluator reteEvaluator,
                           Object object)

Specified by:

getFloatValue in interface InternalReadAccessor

getIntValue

public int getIntValue(ReteEvaluator reteEvaluator,
                       Object object)

Specified by:

getIntValue in interface InternalReadAccessor

getLongValue

public long getLongValue(ReteEvaluator reteEvaluator,
                         Object object)

Specified by:

getLongValue in interface InternalReadAccessor

getShortValue

public short getShortValue(ReteEvaluator reteEvaluator,
                           Object object)

Specified by:

getShortValue in interface InternalReadAccessor

isNullValue

public boolean isNullValue(ReteEvaluator reteEvaluator,
                           Object object)

Specified by:

isNullValue in interface InternalReadAccessor

getNativeReadMethod

public Method getNativeReadMethod()

Specified by:

getNativeReadMethod in interface ReadAccessor

getNativeReadMethodName

public String getNativeReadMethodName()

Specified by:

getNativeReadMethodName in interface ReadAccessor

getHashCode

public int getHashCode(ReteEvaluator reteEvaluator,
                       Object object)

Specified by:

getHashCode in interface InternalReadAccessor

isGlobal

public boolean isGlobal()

Specified by:

isGlobal in interface InternalReadAccessor

isSelfReference

public boolean isSelfReference()

Specified by:

isSelfReference in interface InternalReadAccessor

getBooleanValue

public boolean getBooleanValue(Object object)

Specified by:

getBooleanValue in interface ReadAccessor

getByteValue

public byte getByteValue(Object object)

Specified by:

getByteValue in interface ReadAccessor

getCharValue

public char getCharValue(Object object)

Specified by:

getCharValue in interface ReadAccessor

getDoubleValue

public double getDoubleValue(Object object)

Specified by:

getDoubleValue in interface ReadAccessor

getFloatValue

public float getFloatValue(Object object)

Specified by:

getFloatValue in interface ReadAccessor

getHashCode

public int getHashCode(Object object)

Specified by:

getHashCode in interface ReadAccessor

getIntValue

public int getIntValue(Object object)

Specified by:

getIntValue in interface ReadAccessor

getLongValue

public long getLongValue(Object object)

Specified by:

getLongValue in interface ReadAccessor

getShortValue

public short getShortValue(Object object)

Specified by:

getShortValue in interface ReadAccessor

getValue

public Object getValue(Object object)

Specified by:

getValue in interface ReadAccessor

isNullValue

public boolean isNullValue(Object object)

Specified by:

isNullValue in interface ReadAccessor

getBigDecimalValue

public BigDecimal getBigDecimalValue(ReteEvaluator reteEvaluator,
                                     Object object)

Specified by:

getBigDecimalValue in interface InternalReadAccessor

getBigIntegerValue

public BigInteger getBigIntegerValue(ReteEvaluator reteEvaluator,
                                     Object object)

Specified by:

getBigIntegerValue in interface InternalReadAccessor

getBigDecimalValue

public BigDecimal getBigDecimalValue(Object object)

Specified by:

getBigDecimalValue in interface ReadAccessor

getBigIntegerValue

public BigInteger getBigIntegerValue(Object object)

Specified by:

getBigIntegerValue in interface ReadAccessor

getAccessorKey

public AccessorKey getAccessorKey()