org.datanucleus.store.rdbms.sql.method

Class StringSimilarPostgresqlMethod

java.lang.Object

org.datanucleus.store.rdbms.sql.method.AbstractSQLMethod

org.datanucleus.store.rdbms.sql.method.StringMatchesMethod

org.datanucleus.store.rdbms.sql.method.StringSimilarPostgresqlMethod

All Implemented Interfaces:

SQLMethod

public class StringSimilarPostgresqlMethod
extends StringMatchesMethod

Support for a String.matches like functionality but using Postgresql's "SIMILAR TO" operator. This is mapped to the Java function "String.similarTo" as an extension so it is available for use. A unit test fails if trying to use it as String.matches.

Field Summary

Fields

Modifier and Type	Field and Description
static org.datanucleus.query.expression.Expression.DyadicOperator	OP_SIMILAR_TO

Fields inherited from class org.datanucleus.store.rdbms.sql.method.AbstractSQLMethod

clr, exprFactory, stmt

Constructor Summary

Constructors

Constructor and Description
StringSimilarPostgresqlMethod()

Method Summary

Modifier and Type	Method and Description
protected BooleanExpression	getBooleanLikeExpression(SQLExpression expr, SQLExpression regExpr, SQLExpression escapeExpr)
protected BooleanExpression	getExpressionForStringExpressionInput(SQLExpression expr, SQLExpression regExpr, SQLExpression escapeExpr)

Methods inherited from class org.datanucleus.store.rdbms.sql.method.StringMatchesMethod

getExpression

Methods inherited from class org.datanucleus.store.rdbms.sql.method.AbstractSQLMethod

getMappingForClass, setStatement

Methods inherited from class java.lang.Object

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

Field Detail

OP_SIMILAR_TO

public static final org.datanucleus.query.expression.Expression.DyadicOperator OP_SIMILAR_TO

Constructor Detail

StringSimilarPostgresqlMethod

public StringSimilarPostgresqlMethod()

Method Detail

getExpressionForStringExpressionInput

protected BooleanExpression getExpressionForStringExpressionInput(SQLExpression expr,
                                                                  SQLExpression regExpr,
                                                                  SQLExpression escapeExpr)

Overrides:

getExpressionForStringExpressionInput in class StringMatchesMethod

getBooleanLikeExpression

protected BooleanExpression getBooleanLikeExpression(SQLExpression expr,
                                                     SQLExpression regExpr,
                                                     SQLExpression escapeExpr)

Overrides:

getBooleanLikeExpression in class StringMatchesMethod