com.wewebu.ow.csqlc.ast

Class OwTextSearchPredicate

java.lang.Object

com.wewebu.ow.csqlc.ast.OwBooleanTerm

com.wewebu.ow.csqlc.ast.OwBooleanFactor

com.wewebu.ow.csqlc.ast.OwBooleanTest

com.wewebu.ow.csqlc.ast.OwPredicate

com.wewebu.ow.csqlc.ast.OwTextSearchPredicate

All Implemented Interfaces:

OwSearchCondition

public class OwTextSearchPredicate
extends OwPredicate

SQL AST base node : <content based retrieval> syntax non-terminal as defined by the SQL grammar.

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All rights reserved.

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Since:

3.2.0.0

Field Summary

Fields

Modifier and Type	Field and Description
protected OwColumnReference	columnReference
protected OwColumnQualifier	contentJoinedColumn

Constructor Summary

Constructors

Constructor and Description
OwTextSearchPredicate(OwCharacterStringLiteral searchExpression_p, OwColumnReference columnReference_p, OwColumnQualifier contentJoinedColumn_p, String dialect_p) Constructor for a text search predicate where every parameter can be null, but for a valid predicate at least the search expression should be a non-null and non-empty element.

Method Summary

Methods

Modifier and Type	Method and Description
StringBuilder	createPredicateSQLString()
List<OwColumnQualifier>	getColumnQualifiers()
protected String	getDialect() Get the defined dialect, which was provided through constructor.
protected OwCharacterStringLiteral	getSearchExpression() Return the current search expression, defined during instantiation.
boolean	isValid()

Methods inherited from class com.wewebu.ow.csqlc.ast.OwPredicate

createBooleanTestSQLString, isXCondition

Methods inherited from class com.wewebu.ow.csqlc.ast.OwBooleanTest

asBooleanTest, createBooleanFactorSQLString

Methods inherited from class com.wewebu.ow.csqlc.ast.OwBooleanFactor

createBooleanTermSQLString

Methods inherited from class com.wewebu.ow.csqlc.ast.OwBooleanTerm

createSearchConditionSQLString

Methods inherited from class java.lang.Object

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

Field Detail

contentJoinedColumn

protected OwColumnQualifier contentJoinedColumn

columnReference

protected OwColumnReference columnReference

Constructor Detail

OwTextSearchPredicate

public OwTextSearchPredicate(OwCharacterStringLiteral searchExpression_p,
                     OwColumnReference columnReference_p,
                     OwColumnQualifier contentJoinedColumn_p,
                     String dialect_p)

Constructor for a text search predicate where every parameter can be null, but for a valid predicate at least the search expression should be a non-null and non-empty element.

Parameters:

searchExpression_p - OwCharacterStringLiteral (can be null)

columnReference_p - OwColumnReference (can be null)

contentJoinedColumn_p - OwColumnQualifier (can be null)

dialect_p - (can be null)

Method Detail

isValid

public boolean isValid()

Returns:

true if this search condition can produce a valid string representation through OwSearchCondition.createSearchConditionSQLString()
false if this search condition can NOT produce a valid string representation through OwSearchCondition.createSearchConditionSQLString()

getColumnQualifiers

public List<OwColumnQualifier> getColumnQualifiers()

createPredicateSQLString

public StringBuilder createPredicateSQLString()

Specified by:

createPredicateSQLString in class OwPredicate

Returns:

a StringBuilder filled with the string representation of this non-terminal

getSearchExpression

protected OwCharacterStringLiteral getSearchExpression()

Return the current search expression, defined during instantiation.

Returns:

OwCharacterStringLiteral or null

getDialect

protected String getDialect()

Get the defined dialect, which was provided through constructor.

Returns:

String or null