org.datanucleus.store.rdbms.sql.method

Class StringSimilarPostgresqlMethod

java.lang.Object

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

Constructor Summary

Constructors

Constructor and Description
StringSimilarPostgresqlMethod()

Method Summary

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

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

getExpression

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(SQLStatement stmt,
                                                                  SQLExpression expr,
                                                                  SQLExpression regExpr,
                                                                  SQLExpression escapeExpr)

Overrides:

getExpressionForStringExpressionInput in class StringMatchesMethod

getBooleanLikeExpression

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

Overrides:

getBooleanLikeExpression in class StringMatchesMethod