org.esa.beam.framework.param.validators
Class AbstractExpressionValidator

java.lang.Object
  org.esa.beam.framework.param.AbstractParamValidator
      org.esa.beam.framework.param.validators.StringValidator
          org.esa.beam.framework.param.validators.AbstractExpressionValidator

All Implemented Interfaces:

ParamValidator

Direct Known Subclasses:

BooleanExpressionValidator, GeneralExpressionValidator

public abstract class AbstractExpressionValidator
extends StringValidator

Validates boolean and general expressions.

Field Summary

static String	PROPERTY_KEY_INPUT_PRODUCTS
static String	PROPERTY_KEY_PREFERENCES
static String	PROPERTY_KEY_SELECTED_PRODUCT

Fields inherited from class org.esa.beam.framework.param.AbstractParamValidator

_logger

Constructor Summary

protected

AbstractExpressionValidator()

Method Summary

boolean	equalValues(Parameter parameter, Object value1, Object value2) Tests if the given two values are equal taking the given parameter information into account.
Object	parse(Parameter parameter, String text) Parses a boolean expression.

Methods inherited from class org.esa.beam.framework.param.validators.StringValidator

castToString, equalValues, format, validate, validateThatValueIsAnAllowedEmptyValue, validateThatValueIsAnIdentifier, validateThatValueIsAString

Methods inherited from class org.esa.beam.framework.param.AbstractParamValidator

isAllowedNullText, isAllowedNullValue, isValueContainedInValueSet, validateThatNullValueIsAllowed, validateThatValueIsInValueSet, validateThatValuesAreInValueSet

Methods inherited from class java.lang.Object

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

Field Detail

PROPERTY_KEY_SELECTED_PRODUCT

public static final String PROPERTY_KEY_SELECTED_PRODUCT

See Also:

Constant Field Values

PROPERTY_KEY_INPUT_PRODUCTS

public static final String PROPERTY_KEY_INPUT_PRODUCTS

See Also:

Constant Field Values

PROPERTY_KEY_PREFERENCES

public static final String PROPERTY_KEY_PREFERENCES

See Also:

Constant Field Values

Constructor Detail

AbstractExpressionValidator

protected AbstractExpressionValidator()

Method Detail

parse

public Object parse(Parameter parameter,
                    String text)
             throws ParamParseException

Parses a boolean expression.

Specified by:

parse in interface ParamValidator

Overrides:

parse in class StringValidator

Parameters:

parameter - the expression parameter

text - the expression text to be parsed

Returns:

the validated text

Throws:

ParamParseException

equalValues

public boolean equalValues(Parameter parameter,
                           Object value1,
                           Object value2)

Description copied from interface: ParamValidator

Tests if the given two values are equal taking the given parameter information into account.

Specified by:

equalValues in interface ParamValidator

Overrides:

equalValues in class StringValidator

Parameters:

parameter - the parameter, must not be null

value1 - the first value, can be null

value2 - the second value, can also be null

Returns:

true if the value are equal, false otherwise