com.openexchange.mail.search

Class SearchTerm<T>

java.lang.Object

com.openexchange.mail.search.SearchTerm<T>

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

ANDTerm, BccTerm, BodyTerm, BooleanTerm, CcTerm, FlagTerm, FromTerm, HeaderTerm, NOTTerm, ORTerm, ReceivedDateTerm, SentDateTerm, SizeTerm, SubjectTerm, ToTerm

public abstract class SearchTerm<T>
extends java.lang.Object
implements java.io.Serializable

SearchTerm

Author:

Thorben Betten

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SearchTerm() Initializes a new SearchTerm

Method Summary

Methods

Modifier and Type	Method and Description
abstract void	accept(SearchTermVisitor visitor) Handles given visitor for this search term.
abstract void	addMailField(java.util.Collection<MailField> col) Adds the addressed MailField to specified collection
boolean	containsWildcard() Checks if this search term's pattern contains wildcard characters '*' and '?'
SearchTerm<?>	filter(java.lang.Class<? extends SearchTerm>[] filter) Generates a search term with the unsupported search terms specified through filter removed.
SearchTerm<?>	filter(java.util.Set<java.lang.Class<? extends SearchTerm>> filterSet) Generates a search term with the unsupported search terms specified through filter removed.
abstract javax.mail.search.SearchTerm	getJavaMailSearchTerm() Generates the corresponding JavaMail instance of SearchTerm from this search term
abstract javax.mail.search.SearchTerm	getNonWildcardJavaMailSearchTerm() Generates the corresponding instance of SearchTerm from this search term without any wildcard characters.
abstract T	getPattern() Gets the pattern to which the expression should match.
boolean	isAscii() Checks if this search term's pattern only consists of ASCII 7 bit characters.
abstract boolean	matches(MailMessage mailMessage) Checks if specified mail message matches this search term
abstract boolean	matches(javax.mail.Message msg) Checks if given message matches this search term

Methods inherited from class java.lang.Object

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

Constructor Detail

SearchTerm

public SearchTerm()

Initializes a new SearchTerm

Method Detail

getPattern

public abstract T getPattern()

Gets the pattern to which the expression should match.

Returns:

The pattern

accept

public abstract void accept(SearchTermVisitor visitor)

Handles given visitor for this search term.

Parameters:

visitor - The visitor

addMailField

public abstract void addMailField(java.util.Collection<MailField> col)

Adds the addressed MailField to specified collection

Parameters:

col - The collection which gathers addressed fields

matches

public abstract boolean matches(javax.mail.Message msg)
                         throws com.openexchange.exception.OXException

Checks if given message matches this search term

Parameters:

msg - The message to check

Returns:

true if message matches this search term; otherwise false

Throws:

com.openexchange.exception.OXException - If check fails

matches

public abstract boolean matches(MailMessage mailMessage)
                         throws com.openexchange.exception.OXException

Checks if specified mail message matches this search term

Parameters:

mailMessage - The mail message to check

Returns:

true if specified mail message matches this search term; otherwise false

Throws:

com.openexchange.exception.OXException - If checking mail message against search term fails

getJavaMailSearchTerm

public abstract javax.mail.search.SearchTerm getJavaMailSearchTerm()

Generates the corresponding JavaMail instance of SearchTerm from this search term

Returns:

The corresponding instance of SearchTerm

getNonWildcardJavaMailSearchTerm

public abstract javax.mail.search.SearchTerm getNonWildcardJavaMailSearchTerm()

Generates the corresponding instance of SearchTerm from this search term without any wildcard characters.

This is useful to preselect possible positives and to manually filtering out false positives.

Returns:

The corresponding instance of SearchTerm without any wildcard characters.

See Also:

containsWildcard()

filter

public SearchTerm<?> filter(java.lang.Class<? extends SearchTerm>[] filter)

Generates a search term with the unsupported search terms specified through filter removed.

For each search term contained in this search term the following rule is applied:

1. If search term is an instance of ORTerm or ANDTerm replace the unsupported with:
   • the neutral element if it is the first element that has to be replaced: BooleanTerm.FALSE for ORTerm and BooleanTerm.TRUE for ANDTerm
   • the failing element if term's other element has already been replaced to let the whole search term fail: BooleanTerm.FALSE for both ORTerm and ANDTerm
2. If search term is supported, return the search term itself
3. Otherwise replace with BooleanTerm.FALSE

Note: Only a shallow copy is generated; meaning further working on this search term may influence return value's search term.

Parameters:

filter - An array containing unsupported classes of SearchTerm to filter against

Returns:

A new search term with the unsupported search terms removed

filter

public SearchTerm<?> filter(java.util.Set<java.lang.Class<? extends SearchTerm>> filterSet)

Generates a search term with the unsupported search terms specified through filter removed.

For each search term contained in this search term the following rule is applied:

1. If search term is an instance of ORTerm or ANDTerm replace the unsupported with:
   • the neutral element if it is the first element that has to be replaced: BooleanTerm.FALSE for ORTerm and BooleanTerm.TRUE for ANDTerm
   • the failing element if term's other element has already been replaced to let the whole search term fail: BooleanTerm.FALSE for both ORTerm and ANDTerm
2. If search term is supported, return the search term itself
3. Otherwise replace with BooleanTerm.FALSE

Note: Only a shallow copy is generated; meaning further working on this search term may influence return value's search term.

Parameters:

filterSet - The filter set containing classes unsupported search terms

Returns:

A new search term with the unsupported search terms removed

isAscii

public boolean isAscii()

Checks if this search term's pattern only consists of ASCII 7 bit characters.

This method implies that this search is some kind of string search term. Returns true if not appropriate.

Returns:

true if search term's pattern only consists of ASCII 7 bit characters; otherwise false

containsWildcard

public boolean containsWildcard()

Checks if this search term's pattern contains wildcard characters '*' and '?'.

This method implies that this search is some kind of string search term. Returns false if not appropriate.

Returns:

true if this search term's pattern contains wildcard characters; otherwise false