com.gridsystems.beanfilter
Class EvalValue

java.lang.Object
  com.gridsystems.beanfilter.EvalValue

Direct Known Subclasses:

ArrayValue, BooleanValue, CollectionValue, EvalNode, FieldValue, NullValue, NumValue, ParenthesisValue, SelectWhereValue, SizeOfValue, StringValue, ThisValue, VariableValue

public abstract class EvalValue
extends java.lang.Object

Type description.

Version:

1.0

Author:

Rodrigo Ruiz, Xmas

Field Summary

static int	BOOLEAN Boolean type.
static int	COLLECTION Collection type.
static int	NUMBER Numeric type.
static int	STRING String type.
static int	UNKNOWN Unknown type.
static int	VOID Void type.

Constructor Summary

EvalValue(int linePos, int charPos)
Creates a new instance.

Method Summary

int	getCharPos() Gets the char position of the beginning of this value in the filter expression.
abstract java.lang.Class<?>	getClassValue(java.lang.Class<?> parentClass)
int	getLinePos() Gets the line position of the beginning of this value in the filter expression.
abstract java.lang.Object	getValue(java.lang.Object src) Gets the value.

Methods inherited from class java.lang.Object

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

Field Detail

BOOLEAN

public static final int BOOLEAN

Boolean type.

See Also:

Constant Field Values

NUMBER

public static final int NUMBER

Numeric type.

See Also:

Constant Field Values

STRING

public static final int STRING

String type.

See Also:

Constant Field Values

COLLECTION

public static final int COLLECTION

Collection type.

See Also:

Constant Field Values

VOID

public static final int VOID

Void type.

See Also:

Constant Field Values

UNKNOWN

public static final int UNKNOWN

Unknown type.

See Also:

Constant Field Values

Constructor Detail

EvalValue

public EvalValue(int linePos,
                 int charPos)

Creates a new instance.

Parameters:

linePos - The line token position

charPos - The char token position

Method Detail

getValue

public abstract java.lang.Object getValue(java.lang.Object src)
                                   throws EvalException

Gets the value.

Parameters:

src - The data source

Returns:

The value

Throws:

EvalException - FTR005: Unknown field path

EvalException - FTR006: Invalid operand

EvalException - FTR007: Pattern syntax error

getLinePos

public int getLinePos()

Gets the line position of the beginning of this value in the filter expression.

Returns:

The line position of this value in the filter expression

getCharPos

public int getCharPos()

Gets the char position of the beginning of this value in the filter expression.

Returns:

The char position of this value in the filter expression

getClassValue

public abstract java.lang.Class<?> getClassValue(java.lang.Class<?> parentClass)
                                          throws EvalException

Parameters:

parentClass - Parent Class

Returns:

Return the Java Class that represents or null if it is unknown.

Throws:

EvalException - If an error occurs