net.sf.eos.analyzer
Class TextBuilder

java.lang.Object
  net.sf.eos.config.Configured
      net.sf.eos.analyzer.TextBuilder

All Implemented Interfaces:

Configurable

Direct Known Subclasses:

TextBuilder.SpaceBuilder

public abstract class TextBuilder
extends Configured

Implementation creates new text sequences from Token- or CharSequence-lists. Use newInstance(Configuration) to create a new instance.

Author:

Sascha Kohlmann

Nested Class Summary

static class

TextBuilder.SpaceBuilder Simple implementation concats all texts from the tokens delimited by space (ASCII 0x20).

Field Summary

static TextBuilder	SPACE_BUILDER Simple implementation concats all texts from the tokens delimited by space (ASCII 0x20).
static String	TEXT_BUILDER_IMPL_CONFIG_NAME The configuration key name for the classname of the builder.

Constructor Summary

TextBuilder()

Method Summary

abstract CharSequence	buildText(CharSequence... seq) Creates a new text from the given CharSequence.
abstract CharSequence	buildText(List<Token> tokens) Creates a new text from the given token.
abstract CharSequence	buildText(Token... tokens) Creates a new text from the given token.
static TextBuilder	newInstance(Configuration config) Creates a new instance of a of the builder.

Methods inherited from class net.sf.eos.config.Configured

configure, getConfiguration

Methods inherited from class java.lang.Object

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

Field Detail

TEXT_BUILDER_IMPL_CONFIG_NAME

@ConfigurationKey(type=CLASSNAME,
                  description="Instances are used to create a new text thru Token concationation.")
public static final String TEXT_BUILDER_IMPL_CONFIG_NAME

The configuration key name for the classname of the builder.

See Also:

newInstance(Configuration), Constant Field Values

SPACE_BUILDER

public static final TextBuilder SPACE_BUILDER

Simple implementation concats all texts from the tokens delimited by space (ASCII 0x20).

Constructor Detail

TextBuilder

public TextBuilder()

Method Detail

newInstance

@FactoryMethod(key="net.sf.eos.analyzer.TextBuilder.impl",
               implementation=TextBuilder.SpaceBuilder.class)
public static final TextBuilder newInstance(Configuration config)
                                     throws EosException

Creates a new instance of a of the builder. If the Configuration contains a key TEXT_BUILDER_IMPL_CONFIG_NAME a new instance of the classname of the value will instantiate. The SPACE_BUILDER will instantiate if there is no value setted.

Parameters:

config - the configuration

Returns:

a new instance

Throws:

EosException - if it is not possible to instantiate an instance

buildText

public abstract CharSequence buildText(List<Token> tokens)

Creates a new text from the given token.

Parameters:

tokens - a list of token. If tokens is null an exception will raise.

Returns:

a new text, never null

buildText

public abstract CharSequence buildText(Token... tokens)

Creates a new text from the given token.

Parameters:

tokens - a list of token If tokens is null an exception will raise.

Returns:

a new text, never null

buildText

public abstract CharSequence buildText(CharSequence... seq)

Creates a new text from the given CharSequence.

Parameters:

seq - a list of CharSequence If tokens is null an exception will raise.

Returns:

a new text, never null