Module org.eclipse.persistence.core

Package org.eclipse.persistence.internal.expressions

Class BaseExpression

java.lang.Object

org.eclipse.persistence.expressions.Expression

org.eclipse.persistence.internal.expressions.BaseExpression

All Implemented Interfaces:

Serializable, Cloneable

Direct Known Subclasses:

DataExpression, FunctionExpression, ParameterExpression, SubSelectExpression

public abstract class BaseExpression
extends Expression

Generic class for an expression with a base. The base is the expression that this one is derived from.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected Expression	baseExpression	The base expression is what this was derived from.
protected ExpressionBuilder	builder	PERF: Used to cache the builder.

Fields inherited from class org.eclipse.persistence.expressions.Expression

currentAlias, hashCode, lastTable, selectIfOrderedBy, shouldUseUpperCaseForIgnoreCase

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BaseExpression()
protected	BaseExpression(Expression baseExpression)

Method Summary

Modifier and Type	Method	Description
Expression	getBaseExpression()	The base expression is what the parameter was derived from.
ExpressionBuilder	getBuilder()	Return the expression builder which is the ultimate base of this expression, or null if there isn't one (shouldn't happen if we start from a root).
protected void	postCopyIn(Map alreadyDone)	INTERNAL: Used for cloning.
void	resetPlaceHolderBuilder(ExpressionBuilder queryBuilder)	INTERNAL: Search the tree for any expressions (like SubSelectExpressions) that have been built using a builder that is not attached to the query.
void	setBaseExpression(Expression baseExpression)	The base expression is what the parameter was derived from.
Expression	shallowClone()	INTERNAL: Clear the builder when cloning.

Methods inherited from class org.eclipse.persistence.expressions.Expression

addDate, addDate, addMonths, addMonths, alias, aliasForTable, all, all, all, all, all, all, all, all, all, all, all, all, allOf, and, any, any, any, any, any, any, any, any, any, any, any, any, anyOf, anyOf, anyOfAllowingNone, anyOfAllowingNone, as, ascending, asciiValue, asOf, assignAlias, assignTableAliasesStartingAt, average, between, between, between, between, between, between, between, between, between, caseConditionStatement, caseConditionStatement, caseStatement, caseStatement, cast, clone, cloneUsing, coalesce, coalesce, computeHashCode, concat, containsAllKeyWords, containsAnyKeyWords, containsSubstring, containsSubstring, containsSubstringIgnoringCase, containsSubstringIgnoringCase, convertNodeToUseOuterJoin, convertToUseOuterJoin, copiedVersionFrom, count, create, create, createWithBaseLast, currentDate, currentDateDate, currentTime, currentTimeStamp, dateDifference, dateDifference, dateName, datePart, dateToString, decode, descending, descriptionOfNodeType, difference, distinct, doesConform, doesConform, equal, equal, equal, equal, equal, equal, equal, equal, equal, equal, equalOuterJoin, equalOuterJoin, equals, equalsIgnoreCase, equalsIgnoreCase, except, except, exceptAll, exceptAll, exists, existsNode, extract, extractFields, extractPrimaryKeyValues, extractValue, extractValues, extractXml, from, fromConstant, fromLiteral, get, get, getAlias, getAllowingNull, getAsOfClause, getAsOfClauseRecursively, getClonedField, getField, getField, getFields, getFieldValue, getFunction, getFunction, getFunction, getFunction, getFunctionWithArguments, getLeafDescriptor, getLeafMapping, getName, getNumberVal, getOperator, getOperator, getOwnedTables, getParameter, getParameter, getParameter, getProperty, getSelectionFields, getSelectionFields, getSession, getStringVal, getTable, getTable, getTableAliases, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, hasAsOfClause, hasBeenAliased, hashCode, hexToRaw, ifNull, in, in, in, in, in, in, in, in, in, in, in, in, index, indexOf, intersect, intersect, intersectAll, intersectAll, isClassTypeExpression, isCompoundExpression, isConstantExpression, isDataExpression, isEmpty, isExpressionBuilder, isFieldExpression, isFragment, isFunctionExpression, isLiteralExpression, isLogicalExpression, isMapEntryExpression, isNull, isObjectExpression, isParameterExpression, isQueryKeyExpression, isRelationExpression, isSubSelectExpression, isTableExpression, isTreatExpression, isValueExpression, iterateOn, join, lastDay, leftJoin, leftPad, leftPad, leftTrim, leftTrim, length, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, lessThan, lessThanEqual, lessThanEqual, lessThanEqual, lessThanEqual, lessThanEqual, lessThanEqual, lessThanEqual, lessThanEqual, lessThanEqual, lessThanEqual, like, like, like, like, likeIgnoreCase, likeIgnoreCase, literal, localDate, localDateTime, localTime, locate, locate, locate, mapEntry, mapKey, maximum, minimum, monthsBetween, newTime, nextDay, noneOf, normalize, not, notBetween, notBetween, notBetween, notBetween, notBetween, notBetween, notBetween, notBetween, notBetween, notEmpty, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notEqual, notExists, notIn, notIn, notIn, notIn, notIn, notIn, notIn, notIn, notIn, notIn, notIn, notIn, notLike, notLike, notLike, notLike, notNull, nullIf, nullsFirst, nullsLast, operator, or, performOperator, postfixSQL, prefixSQL, printJava, printSQL, rebuildOn, ref, regexp, regexp, registerIn, replace, replicate, replicate, resetCache, reverse, right, right, rightPad, rightPad, rightTrim, rightTrim, roundDate, selectIfOrderedBy, setLocalBase, setSelectIfOrderedBy, size, size, some, some, some, some, some, some, some, some, some, some, some, some, sql, standardDeviation, subQuery, substring, substring, substring, substring, sum, toChar, toChar, toCharacter, toDate, toLowerCase, toNumber, toString, toString, toUpperCase, toUppercaseCasedWords, translate, treat, trim, trim, truncateDate, twist, twistedForBaseAndContext, type, union, union, unionAll, unionAll, validateNode, value, value, value, value, value, value, value, value, value, value, valueFromObject, valueFromObject, variance, writeAlias, writeDescriptionOn, writeField, writeFields, writeSubexpressionsTo

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Details

baseExpression

protected Expression baseExpression

The base expression is what this was derived from.

builder

protected ExpressionBuilder builder

PERF: Used to cache the builder.

Constructor Details

BaseExpression

protected BaseExpression()

BaseExpression

protected BaseExpression(Expression baseExpression)

Method Details

getBaseExpression

public Expression getBaseExpression()

The base expression is what the parameter was derived from.

getBuilder

public ExpressionBuilder getBuilder()

Return the expression builder which is the ultimate base of this expression, or null if there isn't one (shouldn't happen if we start from a root).

Specified by:

getBuilder in class Expression

postCopyIn

protected void postCopyIn(Map alreadyDone)

INTERNAL: Used for cloning.

Overrides:

postCopyIn in class Expression

resetPlaceHolderBuilder

public void resetPlaceHolderBuilder(ExpressionBuilder queryBuilder)

INTERNAL: Search the tree for any expressions (like SubSelectExpressions) that have been built using a builder that is not attached to the query. This happens in case of an Exists call using a new ExpressionBuilder(). This builder needs to be replaced with one from the query.

Specified by:

resetPlaceHolderBuilder in class Expression

setBaseExpression

public void setBaseExpression(Expression baseExpression)

The base expression is what the parameter was derived from. This is used for nested parameters.

shallowClone

public Expression shallowClone()

INTERNAL: Clear the builder when cloning.

Overrides:

shallowClone in class Expression