Package com.google.appengine.api.search.dev

Class SnippetExpression

java.lang.Object

com.google.appengine.api.search.dev.Expression

com.google.appengine.api.search.dev.SnippetExpression

public class SnippetExpression
extends Expression

Expression which generates snippets from specified document.

Nested Class Summary

Nested classes/interfaces inherited from class com.google.appengine.api.search.dev.Expression

Expression.Sorter

Method Summary

Modifier and Type	Method	Description
com.google.apphosting.api.search.DocumentPb.FieldValue	eval(org.apache.lucene.document.Document doc)	Evaluate the expression to field value proto for the specified document.
String	evalHtml(org.apache.lucene.document.Document doc)
List<Expression.Sorter>	getSorters(int sign, double defaultValueNumeric, String defaultValueText)	Get list of sort classes for the expression.
static Expression	makeSnippetExpression(String query, String fieldName, Set<com.google.apphosting.api.search.DocumentPb.FieldValue.ContentType> fieldTypes, com.google.appengine.api.search.dev.NumericExpression maxCharsExpression, com.google.appengine.api.search.dev.NumericExpression maxSnippetsExpression)

Methods inherited from class com.google.appengine.api.search.dev.Expression

makeValue

Methods inherited from class java.lang.Object

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

Method Details

makeSnippetExpression

public static Expression makeSnippetExpression(String query,
 String fieldName,
 Set<com.google.apphosting.api.search.DocumentPb.FieldValue.ContentType> fieldTypes,
 com.google.appengine.api.search.dev.NumericExpression maxCharsExpression,
 com.google.appengine.api.search.dev.NumericExpression maxSnippetsExpression)

evalHtml

public String evalHtml(org.apache.lucene.document.Document doc)
                throws EvaluationException

Throws:

EvaluationException

eval

public com.google.apphosting.api.search.DocumentPb.FieldValue eval(org.apache.lucene.document.Document doc)
                                                            throws EvaluationException

Description copied from class: Expression

Evaluate the expression to field value proto for the specified document.

Specified by:

eval in class Expression

Throws:

EvaluationException

getSorters

public List<Expression.Sorter> getSorters(int sign,
 double defaultValueNumeric,
 String defaultValueText)

Description copied from class: Expression

Get list of sort classes for the expression. Usually it contains just one element, but for field expressions it can potentially return 2 sorters when both numeric and text fields exist with a field name.

Specified by:

getSorters in class Expression