Package com.blazebit.persistence.impl

Class ExpressionUtils

java.lang.Object

com.blazebit.persistence.impl.ExpressionUtils

public class ExpressionUtils
extends Object

Since:

1.0.0

Author:

Christian Beikov, Moritz Becker

Method Summary

Modifier and Type	Method	Description
static boolean	containsSizeExpression(Expression e)
static boolean	containsSubqueryExpression(Expression e)
static javax.persistence.FetchType	getFetchType(javax.persistence.metamodel.Attribute<?,?> attr)
static boolean	isFunctionFunctionExpression(FunctionExpression func)
static boolean	isNullable(EntityMetamodel metamodel, com.blazebit.persistence.impl.ConstantifiedJoinNodeAttributeCollector constantifiedJoinNodeAttributeCollector, Expression expr)
static boolean	isNullable(EntityMetamodel metamodel, Map<String,javax.persistence.metamodel.Type<?>> rootTypes, Expression expr)
static Expression	replaceSubexpression(Expression superExpression, String placeholder, Expression substitute)
static String	unwrapStringLiteral(String stringLiteral)

Methods inherited from class java.lang.Object

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

Method Details

unwrapStringLiteral

public static String unwrapStringLiteral(String stringLiteral)

Parameters:

stringLiteral - A possibly quoted string literal

Returns:

The stringLiteral without quotes

isFunctionFunctionExpression

public static boolean isFunctionFunctionExpression(FunctionExpression func)

isNullable

public static boolean isNullable(EntityMetamodel metamodel,
 com.blazebit.persistence.impl.ConstantifiedJoinNodeAttributeCollector constantifiedJoinNodeAttributeCollector,
 Expression expr)

isNullable

public static boolean isNullable(EntityMetamodel metamodel,
 Map<String,javax.persistence.metamodel.Type<?>> rootTypes,
 Expression expr)

getFetchType

public static javax.persistence.FetchType getFetchType(javax.persistence.metamodel.Attribute<?,?> attr)

containsSubqueryExpression

public static boolean containsSubqueryExpression(Expression e)

containsSizeExpression

public static boolean containsSizeExpression(Expression e)

replaceSubexpression

public static Expression replaceSubexpression(Expression superExpression,
 String placeholder,
 Expression substitute)