Package org.geotools.brewer.styling.filter

Class FilterBuilder

Object

FilterBuilder

All Implemented Interfaces:

Builder<Filter>

Direct Known Subclasses:

SubFilterBuilder

public class FilterBuilder
extends Object
implements Builder<Filter>

FilterBuilder acting as a simple wrapper around an Expression.

Field Summary

Fields

Modifier and Type	Field	Description
protected Builder<? extends Filter>	delegate
protected FilterFactory	ff
protected Filter	filter
protected boolean	unset

Constructor Summary

Constructors

Constructor	Description
FilterBuilder()
FilterBuilder(Filter filter)

Method Summary

Modifier and Type	Method	Description
Filter	build()	Build the expression.
FilterBuilder	reset()	Configure the Builder to produce a default result.
FilterBuilder	reset(Filter filter)	Configure the Builder to produce a copy of the provided original.
FilterBuilder	unset()	Configure the Builder to produce null.

Methods inherited from class Object

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

Field Details

filter

protected Filter filter

ff

protected FilterFactory ff

unset

protected boolean unset

delegate

protected Builder<? extends Filter> delegate

Constructor Details

FilterBuilder

public FilterBuilder()

FilterBuilder

public FilterBuilder(Filter filter)

Method Details

build

public Filter build()

Build the expression.

Specified by:

build in interface Builder<Filter>

Returns:

Created object may be null if unset()

reset

public FilterBuilder reset()

Description copied from interface: Builder

Configure the Builder to produce a default result.

Specified by:

reset in interface Builder<Filter>

Returns:

Builder configured to produce a default result.

reset

public FilterBuilder reset(Filter filter)

Description copied from interface: Builder

Configure the Builder to produce a copy of the provided original.

Specified by:

reset in interface Builder<Filter>

Parameters:

filter - Original, if null this will behave the same as unset()

Returns:

Builder configured to produce the provided original

unset

public FilterBuilder unset()

Description copied from interface: Builder

Configure the Builder to produce null.

This method allows a Builder to be used as a placeholder; in its unset state the build() method will produce null. If any of the builder methods are used the builder will produce a result.

Specified by:

unset in interface Builder<Filter>

Returns:

Builder configured to build null