C from the Term in Java

Paint Data Matrix 2d barcode in Java C from the Term

C from the Term
java data matrix barcode reader
Using Barcode printer for Java Control to generate, create DataMatrix image in Java applications. barcode reader using java source code java data matrix barcode reader
www.OnBarcode.com
java data matrix barcode reader
Using Barcode reader for Java Control to read, scan read, scan image in Java applications. java barcode scanner api java data matrix barcode reader
www.OnBarcode.com
org.hibernate.search.FullTextQuery hibQuery = session.createFullTextQuery(query, Dvd.class); List<Dvd> results = hibQuery.list(); assert results.size() == 5 : "incorrect hit count"; assert results.get(0).getDescription() .equals("he's not a computer salesman"); for (Dvd dvd : results) { System.out.println(dvd.getDescription()); }
java upc-a
Using Barcode generation for Java Control to generate, create UPC Code image in Java applications. java upc-a
www.OnBarcode.com
Print GS1 DataBar-14 In Java
Using Barcode creator for Java Control to generate, create GS1 RSS image in Java applications.
www.OnBarcode.com
Dvd.class.getName()).list())
qr code reader for java free download
Using Barcode drawer for Java Control to generate, create Denso QR Bar Code image in Java applications. qr code reader for java free download
www.OnBarcode.com
java error code 128
Using Barcode drawer for Java Control to generate, create Code 128C image in Java applications. java error code 128
www.OnBarcode.com
for (Object element : session.createQuery("from " + session.delete(element); tx.commit();
pdf417 barcode javascript
Using Barcode printer for Java Control to generate, create PDF-417 2d barcode image in Java applications. pdf417 barcode javascript
www.OnBarcode.com
Creating OneCode In Java
Using Barcode creation for Java Control to generate, create USPS OneCode Solution Barcode image in Java applications.
www.OnBarcode.com
CHAPTER 7 finally { session.close(); }
DataMatrix Encoder In Java
Using Barcode creator for Java Control to generate, create DataMatrix image in Java applications.
www.OnBarcode.com
.net data matrix
Using Barcode encoder for .NET Control to generate, create DataMatrix image in Visual Studio .NET applications. vb net 2d barcode generator .net data matrix
www.OnBarcode.com
Writing a Lucene query
UPC-A Supplement 2 Decoder In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
EAN-13 Supplement 5 Decoder In None
Using Barcode scanner for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
private void buildIndex(FullTextSession session, Transaction tx) { for (int x = 0; x < descs.length; x++) { Dvd dvd = new Dvd(); dvd.setDescription(descs[x]); dvd.setId(x); session.save(dvd); } tx.commit(); session.clear(); } } description:salesman
Creating Barcode In None
Using Barcode printer for Font Control to generate, create Barcode image in Font applications.
www.OnBarcode.com
java ean 13 reader
Using Barcode recognizer for Java Control to read, scan read, scan image in Java applications. java ean 13 reader
www.OnBarcode.com
D Generated query syntax
birt upc-a
Using Barcode drawer for Eclipse BIRT Control to generate, create GS1 - 12 image in Eclipse BIRT applications. birt barcode4j birt upc-a
www.OnBarcode.com
Barcode Printer In Java
Using Barcode generator for Android Control to generate, create Barcode image in Android applications.
www.OnBarcode.com
he's not a computer salesman a once-successful salesman he hits the road as a traveling salesman a traveling salesman touting the wave of the future transforms into an aggressive, high-risk salesman
Paint UPC Code In None
Using Barcode generator for Office Word Control to generate, create UPCA image in Microsoft Word applications.
www.OnBarcode.com
vb.net code 39 reader
Using Barcode decoder for .NET framework Control to read, scan read, scan image in .NET framework applications. vb.net code 39 reader
www.OnBarcode.com
Notice that we ve introduced a new class in addition to TermQuery. The Term class B takes a field name and a string to search for. It is then passed to the TermQuery constructor C to create the query. This example should illustrate why most queries are reduced to sets of TermQuerys. After all, queries are nothing more than a series of single terms. The generated query syntax is shown at D. Before we cover the use of several of the individual query-generation classes, let s discuss an important topic that can help with anticipating the text users enter in queries. This important topic is utilizing regular expressions to make sure that what users enter as a query is really what they intended to enter.
QR Code Scanner In None
Using Barcode reader for Software Control to read, scan read, scan image in Software applications.
www.OnBarcode.com
Generating Code 39 In None
Using Barcode printer for Microsoft Word Control to generate, create Code 39 Full ASCII image in Word applications.
www.OnBarcode.com
SPECIAL CHARACTERS
With applications there s no way to anticipate what a user will enter as the text of a query. Toward the end of section 7.1.1 we discussed the problem with the (dash) character being misinterpreted as a Boolean NOT operator. You cannot expect the users of your application to know and understand that they will have to escape dashes with a backslash (that just won t happen). Well, surprise, it is not just the character you will have to consider escaping. Lucene uses several special characters to go about normal everyday tasks, and, as we ve shown in section 7.1.1, these could be misinterpreted if they were used as is in queries. Table 7.2 shows a list of those characters. How can we escape these special characters in our application when we have no control over how users enter their query strings Listing 7.6 is one example of how to accomplish this. Feel free to use this code as you see fit in your applications. If you re running a Java version earlier than 1.5, the QueryParser class supplies a method that accomplishes the same results: public static String escape(String s).
Building custom queries programmatically
Table 7.2 Special character Special characters and their interpretation Where it is used shorthand for AND shorthand for NOT additional shorthand for AND additional shorthand for OR additional shorthand for NOT grouping parentheses exclusive lower bound exclusive upper bound Special character Where it is used inclusive lower bound inclusive upper bound term boost phrase query delimiter proximity query slop factor fuzzy query minimumumSimilarity multicharacter wildcard single-character wildcard fieldname/term delimiter escape character
+ && || !
[ ] ^ ~ * : \
Listing 7.6
Programmatically escaping special characters from user-entered queries Define the special characters
private static final String[] SPECIALS = new String[]{ "+", "-", "&&", "||", "!", "(", ")", "{", "}", "[", "]", "^", "\"", "~", "*", " ", ":", "\\" }; protected String escapeSpecials(String clientQuery) { String regexOr = ""; for (String special : SPECIALS) { regexOr += (special .equals(SPECIALS[0]) "" : "|") + "\\" + special.substring(0, 1); } clientQuery = clientQuery .replaceAll("( <!\\\\)(" + regexOr + ")", "\\\\$1"); return clientQuery.trim(); }
C regex string D characters for specials C we
Substitute escaped
Build the
We start B by defining the special characters in a String array. In the loop at build our regular expression. In this case the expression string is
\+|\-|\&|\||\!|\(|\)|\{|\}|\[|\]|\^|\"|\~|\*|\ |\:|\\
As you d expect, this is each of the special characters preceded by the escape character \ and separated from the next special character by the | (OR) character. The meat of the code is D. The String.replaceAll() java method steps through the clientQuery string and replaces any of the special characters it finds with that special
Copyright © OnBarcode.com . All rights reserved.