org.jdesktop.swingx
Class AbstractSearchable

java.lang.Object
  org.jdesktop.swingx.AbstractSearchable

All Implemented Interfaces:

Searchable

Direct Known Subclasses:

JXList.ListSearchable, JXTable.TableSearchable, JXTree.TreeSearchable

public abstract class AbstractSearchable
extends java.lang.Object
implements Searchable

An abstract implementation of Searchable supporting incremental search. Keeps internal state to represent the previous search result. For all methods taking a string as parameter: compiles the String to a Pattern as-is and routes to the central method taking a Pattern.

Author:

Jeanette Winzenburg

Nested Class Summary

static class

AbstractSearchable.SearchResult A convenience class to hold search state.

Field Summary

protected AbstractSearchable.SearchResult	lastSearchResult stores the result of the previous search.
static java.lang.String	MATCH_HIGHLIGHTER key for client property to use SearchHighlighter as match marker.
static AbstractSearchable.SearchResult	NO_MATCH a constant representing not-found state.

Constructor Summary

AbstractSearchable()

Method Summary

protected int	adjustStartPosition(int startIndex, boolean backwards) Called if startIndex is different from last search and make sure a backwards/forwards search starts at last/first row, respectively.
protected AbstractSearchable.SearchResult	createSearchResult(java.util.regex.Matcher matcher, int row, int column) Factory method to create a SearchResult from the given parameters.
protected int	doSearch(java.util.regex.Pattern pattern, int startIndex, boolean backwards) Performs a search starting at the given startIndex using the pattern; Pattern.
protected abstract AbstractSearchable.SearchResult	findExtendedMatch(java.util.regex.Pattern pattern, int row) called if sameRowIndex && !hasEqualRegEx.
protected abstract void	findMatchAndUpdateState(java.util.regex.Pattern pattern, int startRow, boolean backwards) loops through the searchable until a match is found or the end is reached.
protected abstract int	getSize() returns the size of this searchable.
protected boolean	isEmpty(java.lang.String searchString) checks if the searchString should be interpreted as empty.
protected boolean	isEqualPattern(java.util.regex.Pattern pattern) Checks if the given Pattern should be considered as the same as in a previous search.
protected boolean	isEqualStartIndex(int startIndex) Checks if the startIndex should be considered as the same as in the previous search.
protected boolean	isTrivialNoMatch(java.util.regex.Pattern pattern, int startIndex) Checks and returns if it can be trivially decided to not match.
protected boolean	isValidIndex(int index) checks if index is in range: 0 <= index < getSize().
protected abstract void	moveMatchMarker() Moves the match marker according to current found state.
protected int	moveStartPosition(int startIndex, boolean backwards) Moves the internal start position for matching as appropriate and returns the new startIndex to use.
int	search(java.util.regex.Pattern pattern) Performs a forward search starting at the beginning across the Searchable using the pattern; Pattern.
int	search(java.util.regex.Pattern pattern, int startIndex) Performs a forward search starting at the given startIndex using the Pattern; Pattern.
int	search(java.util.regex.Pattern pattern, int startIndex, boolean backwards) Performs a search starting at the given startIndex using the pattern; Pattern.
int	search(java.lang.String searchString) Performs a forward search starting at the beginning across the Searchable using String that represents a regex pattern; Pattern.
int	search(java.lang.String searchString, int startIndex) Performs a forward search starting at the given startIndex using String that represents a regex pattern; Pattern.
int	search(java.lang.String searchString, int startIndex, boolean backward) Performs a search starting at the given startIndex using String that represents a regex pattern; Pattern.
protected void	updateState(AbstractSearchable.SearchResult searchResult)

Methods inherited from class java.lang.Object

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

Field Detail

NO_MATCH

public static final AbstractSearchable.SearchResult NO_MATCH

a constant representing not-found state.

lastSearchResult

protected AbstractSearchable.SearchResult lastSearchResult

stores the result of the previous search.

MATCH_HIGHLIGHTER

public static final java.lang.String MATCH_HIGHLIGHTER

key for client property to use SearchHighlighter as match marker.

See Also:

Constant Field Values

Constructor Detail

AbstractSearchable

public AbstractSearchable()

Method Detail

search

public int search(java.lang.String searchString)

Performs a forward search starting at the beginning across the Searchable using String that represents a regex pattern; Pattern.

Specified by:

search in interface Searchable

Parameters:

searchString - String we should find in a document.

Returns:

the position of the match in appropriate coordinates or -1 if no match found.

search

public int search(java.lang.String searchString,
                  int startIndex)

Performs a forward search starting at the given startIndex using String that represents a regex pattern; Pattern.

Specified by:

search in interface Searchable

Parameters:

searchString - String we should find in a document.

startIndex - Start position in a document or -1 if we want to search from the beginning.

Returns:

the position of the match in appropriate coordinates or -1 if no match found.

search

public int search(java.lang.String searchString,
                  int startIndex,
                  boolean backward)

Performs a search starting at the given startIndex using String that represents a regex pattern; Pattern. The search direction depends on the boolean parameter: forward/backward if false/true, respectively.

Specified by:

search in interface Searchable

Parameters:

searchString - String we should find in a document.

startIndex - Start position in a document or -1 if we want to search from the beginning.

backward - Indicates search direction, will search from the given position towards the beginning of a document if this parameter is true.

Returns:

the position of the match in appropriate coordinates or -1 if no match found.

search

public int search(java.util.regex.Pattern pattern)

Performs a forward search starting at the beginning across the Searchable using the pattern; Pattern.

Specified by:

search in interface Searchable

Parameters:

pattern - Pattern for search

Returns:

the position of the match in appropriate coordinates or -1 if no match found.

search

public int search(java.util.regex.Pattern pattern,
                  int startIndex)

Performs a forward search starting at the given startIndex using the Pattern; Pattern.

Specified by:

search in interface Searchable

Parameters:

pattern - Pattern for search

startIndex - starting index of search. If -1 then start from the beginning

Returns:

the position of the match in appropriate coordinates or -1 if no match found.

search

public int search(java.util.regex.Pattern pattern,
                  int startIndex,
                  boolean backwards)

Performs a search starting at the given startIndex using the pattern; Pattern. The search direction depends on the boolean parameter: forward/backward if false/true, respectively. Updates visible and internal search state.

Specified by:

search in interface Searchable

Parameters:

startIndex - the index to start search

backwards - flag for search direction

pattern -

Returns:

the position of the match in appropriate coordinates or -1 if no match found.

doSearch

protected int doSearch(java.util.regex.Pattern pattern,
                       int startIndex,
                       boolean backwards)

Performs a search starting at the given startIndex using the pattern; Pattern. The search direction depends on the boolean parameter: forward/backward if false/true, respectively. Updates internal search state.

Parameters:

pattern -

startIndex -

backwards -

Returns:

the position of the match in appropriate coordinates or -1 if no match found.

findMatchAndUpdateState

protected abstract void findMatchAndUpdateState(java.util.regex.Pattern pattern,
                                                int startRow,
                                                boolean backwards)

loops through the searchable until a match is found or the end is reached. Updates internal search state.

Parameters:

pattern -

startRow -

backwards -

isTrivialNoMatch

protected boolean isTrivialNoMatch(java.util.regex.Pattern pattern,
                                   int startIndex)

Checks and returns if it can be trivially decided to not match. Here: pattern is null or startIndex exceeds the upper size limit.

Parameters:

pattern -

startIndex -

Returns:

adjustStartPosition

protected int adjustStartPosition(int startIndex,
                                  boolean backwards)

Called if startIndex is different from last search and make sure a backwards/forwards search starts at last/first row, respectively.

Parameters:

startIndex -

backwards -

Returns:

moveStartPosition

protected int moveStartPosition(int startIndex,
                                boolean backwards)

Moves the internal start position for matching as appropriate and returns the new startIndex to use. Called if search was messaged with the same startIndex as previously.

Parameters:

startIndex -

backwards -

Returns:

isEqualPattern

protected boolean isEqualPattern(java.util.regex.Pattern pattern)

Checks if the given Pattern should be considered as the same as in a previous search. Here: compares the patterns' regex.

Parameters:

pattern -

Returns:

isEqualStartIndex

protected boolean isEqualStartIndex(int startIndex)

Checks if the startIndex should be considered as the same as in the previous search.

Parameters:

startIndex -

Returns:

true if the startIndex should be re-matched, false if not.

isEmpty

protected boolean isEmpty(java.lang.String searchString)

checks if the searchString should be interpreted as empty. here: returns true if string is null or has zero length.

Parameters:

searchString -

Returns:

findExtendedMatch

protected abstract AbstractSearchable.SearchResult findExtendedMatch(java.util.regex.Pattern pattern,
                                                                     int row)

called if sameRowIndex && !hasEqualRegEx. Matches the cell at row/lastFoundColumn against the pattern. PRE: lastFoundColumn valid.

Parameters:

pattern -

row -

Returns:

createSearchResult

protected AbstractSearchable.SearchResult createSearchResult(java.util.regex.Matcher matcher,
                                                             int row,
                                                             int column)

Factory method to create a SearchResult from the given parameters.

Parameters:

matcher - the matcher after a successful find. Must not be null.

row - the found index

column - the found column

Returns:

isValidIndex

protected boolean isValidIndex(int index)

checks if index is in range: 0 <= index < getSize().

Parameters:

index -

Returns:

getSize

protected abstract int getSize()

returns the size of this searchable.

Returns:

updateState

protected void updateState(AbstractSearchable.SearchResult searchResult)

moveMatchMarker

protected abstract void moveMatchMarker()

Moves the match marker according to current found state.