com.pervasive.datarush.schema

Class TextConversionDefaults

java.lang.Object

com.pervasive.datarush.schema.TextConversionDefaults

public final class TextConversionDefaults
extends Object

Describes behaviors used during conversion of token values to and from text. These settings are typically used to describe default behavior for a schema. Text types are not required to honor any of these settings. The default behavior for text type processing is:

• Null values are indicated by an empty string ("").
• String-valued types do not perform whitespace trimming and tread the empty string as a null value.

Field Summary

Fields

Modifier and Type	Field and Description
static String	DEFAULT_NULL_MARKER The default text value used to indicate a null value, the empty string ("").

Constructor Summary

Constructors

Constructor and Description
TextConversionDefaults() Creates a descriptor specifying default behavior.
TextConversionDefaults(String nullIndicator) Creates a descriptor having the specified null indicator.
TextConversionDefaults(String nullIndicator, TextTypes.StringConversion behavior) Creates a descriptor having the specified behavior.
TextConversionDefaults(TextTypes.StringConversion behavior) Creates a descriptor having the specified string processing behavior.

Method Summary

Modifier and Type	Method and Description
String	applyDefaultNullMarker(String value) Merges the given null indicator with the default.
TextTypes.StringConversion	applyDefaultStringHandling(TextTypes.StringConversion value) Merges the given string conversion behavior with the default.
boolean	equals(Object o)
String	getNullIndicator() Gets the text value used to represent null values.
TextTypes.StringConversion	getStringHandling() Gets the behavior for processing string-valued types.
int	hashCode()
void	setNullIndicator(String value) Sets the text value used to represent null values.
void	setStringHandling(TextTypes.StringConversion behavior) Sets the behavior for processing string-valued types.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_NULL_MARKER

public static final String DEFAULT_NULL_MARKER

The default text value used to indicate a null value, the empty string ("").

See Also:

Constant Field Values

Constructor Detail

TextConversionDefaults

public TextConversionDefaults()

Creates a descriptor specifying default behavior.

TextConversionDefaults

public TextConversionDefaults(String nullIndicator)

Creates a descriptor having the specified null indicator. All other behavior is default.

Parameters:

nullIndicator - the string used to represent a null value

TextConversionDefaults

public TextConversionDefaults(TextTypes.StringConversion behavior)

Creates a descriptor having the specified string processing behavior. All other behavior is default.

Parameters:

behavior - indicates how string-valued type should be converted from text

TextConversionDefaults

public TextConversionDefaults(String nullIndicator,
                              TextTypes.StringConversion behavior)

Creates a descriptor having the specified behavior.

Parameters:

nullIndicator - the string used to represent a null value

behavior - indicates how string-valued type should be converted from text

Method Detail

getNullIndicator

public String getNullIndicator()

Gets the text value used to represent null values.

Returns:

the string indicating a null value

applyDefaultNullMarker

public String applyDefaultNullMarker(String value)

Merges the given null indicator with the default.

Parameters:

value - the input null indicator

Returns:

value if value != null, otherwise the null indicator value in the defaults

setNullIndicator

public void setNullIndicator(String value)

Sets the text value used to represent null values.

Parameters:

value - the string used to indicate a null value

getStringHandling

public TextTypes.StringConversion getStringHandling()

Gets the behavior for processing string-valued types.

Returns:

how string-valued types should be converted from text

setStringHandling

public void setStringHandling(TextTypes.StringConversion behavior)

Sets the behavior for processing string-valued types.

Parameters:

behavior - indicates how string-valued types should be converted from text

applyDefaultStringHandling

public TextTypes.StringConversion applyDefaultStringHandling(TextTypes.StringConversion value)

Merges the given string conversion behavior with the default.

Parameters:

value - the input string conversion behavior

Returns:

value if value != null, otherwise the string conversion behavior in the defaults

equals

public boolean equals(Object o)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object