Module org.eclipse.persistence.core
Class ManualQueryKeyExpression
java.lang.Object
org.eclipse.persistence.expressions.Expression
org.eclipse.persistence.internal.expressions.BaseExpression
org.eclipse.persistence.internal.expressions.DataExpression
org.eclipse.persistence.internal.expressions.ObjectExpression
org.eclipse.persistence.internal.expressions.QueryKeyExpression
org.eclipse.persistence.internal.expressions.ManualQueryKeyExpression
- All Implemented Interfaces:
Serializable
,Cloneable
This class represents a "query key" that isn't really there
in the descriptors. For example, I could use this to create
an 'employee' query key from an 'address' node even if addresses
don't know their employee. It's called manual, because I will
have to provide the relevant join criteria myself (normally based
on a reverse relationship. Motivated by batch reading.
- See Also:
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Field Summary
Fields inherited from class org.eclipse.persistence.internal.expressions.QueryKeyExpression
aliasedField, hasMapping, hasQueryKey, index, isAttributeExpression, isClonedForSubQuery, mapping, name, queryKey, shouldQueryToManyRelationship
Fields inherited from class org.eclipse.persistence.internal.expressions.ObjectExpression
castClass, derivedExpressions, descriptor, hasBeenAliased, joinSource, onClause, shouldUseOuterJoin, shouldUseOuterJoinForMultitableInheritance
Fields inherited from class org.eclipse.persistence.internal.expressions.DataExpression
asOfClause, derivedFields, derivedTables, hasBeenNormalized, tableAliases
Fields inherited from class org.eclipse.persistence.internal.expressions.BaseExpression
baseExpression, builder
Fields inherited from class org.eclipse.persistence.expressions.Expression
currentAlias, hashCode, lastTable, selectIfOrderedBy, shouldUseUpperCaseForIgnoreCase
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Constructor Summary
ConstructorDescriptionManualQueryKeyExpression
(String impliedRelationshipName, Expression base) ManualQueryKeyExpression
(String impliedRelationshipName, Expression base, ClassDescriptor descriptor) -
Method Summary
Modifier and TypeMethodDescriptionINTERNAL: Used for debug printing.boolean
INTERNAL: Return if the expression is equal to the other.INTERNAL: If we ever get in the circumstance of a manual query key to an aggregate, then we can assume that the owner of that aggregate isn't participating (and even if it is, we can't know which node it is, so *DO* use the aggregate's parents tablesboolean
INTERNAL: We can never be an attribute, we're always a joinmappingCriteria
(Expression base) rebuildOn
(Expression newBase) INTERNAL: This expression is built on a different base than the one we want.twistedForBaseAndContext
(Expression newBase, Expression context, Expression oldBase) INTERNAL: Rebuild myself against the base, with the values of parameters supplied by the context expression.void
Do any required validation for this node.Methods inherited from class org.eclipse.persistence.internal.expressions.QueryKeyExpression
additionalExpressionCriteria, additionalExpressionCriteriaMap, aliasForTable, checkJoinForSubSelectWithParent, computeHashCode, doQueryToManyRelationship, getAdditionalTables, getAliasedField, getAliasedTable, getField, getFields, getFieldValue, getLeafDescriptor, getLeafMapping, getMapKeyDescriptor, getMapping, getMappingFromQueryKey, getName, getNestedAttributeName, getReferenceTable, getRelationTable, getSelectionFields, getSourceTable, index, initializeAliasedField, isDirectCollection, isManyToMany, isMapKeyObjectRelationship, isOneToMany, isOneToOne, isQueryKeyExpression, normalize, normalize, postCopyIn, printJava, printSQL, rebuildOn, resetCache, shouldQueryToManyRelationship, treat, valueFromObject, valuesFromCollection, writeDescriptionOn
Methods inherited from class org.eclipse.persistence.internal.expressions.ObjectExpression
addDerivedExpression, anyOf, anyOfAllowingNone, assignTableAliasesStartingAt, clearAliases, convertToCastDescriptor, copyDerivedExpressions, derivedExpressionNamed, derivedManualExpressionNamed, doNotUseOuterJoin, doUseOuterJoin, existingDerivedExpressionNamed, get, getAllowingNull, getCastClass, getDescriptor, getFirstNonAggregateExpressionAfterExpressionBuilder, getForUpdateOfFields, getJoinSource, getManualQueryKey, getOnClause, getOuterJoinExpIndex, hasBeenAliased, hasDerivedExpressions, isDowncast, isObjectExpression, isTreatUsed, isUsingOuterJoinForMultitableInheritance, join, leftJoin, newDerivedExpressionNamed, newManualDerivedExpressionNamed, postCopyIn, setCastClass, setJoinSource, setOnClause, setOuterJoinExpIndex, setShouldUseOuterJoinForMultitableInheritance, shouldUseOuterJoin, shouldUseOuterJoinForMultitableInheritance, type, writeForUpdateOfFields
Methods inherited from class org.eclipse.persistence.internal.expressions.DataExpression
addDerivedField, addDerivedTable, asOf, assignAlias, assignAlias, copyCollection, existingDerivedField, existingDerivedTable, getAlias, getAsOfClause, getContainingDescriptor, getField, getField, getTable, getTable, getTableAliases, hasAsOfClause, hasBeenNormalized, hasDerivedFields, hasDerivedTables, isDataExpression, iterateOn, newDerivedField, newDerivedTable, setHasBeenNormalized, setTableAliases, tableAliasesDescription, writeSubexpressionsTo
Methods inherited from class org.eclipse.persistence.internal.expressions.BaseExpression
getBaseExpression, getBuilder, resetPlaceHolderBuilder, setBaseExpression, shallowClone
Methods inherited from class org.eclipse.persistence.expressions.Expression
addDate, addDate, addMonths, addMonths, alias, 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, anyOfAllowingNone, as, ascending, asciiValue, average, between, between, between, between, between, between, between, between, between, caseConditionStatement, caseConditionStatement, caseStatement, caseStatement, cast, clone, cloneUsing, coalesce, coalesce, 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, difference, distinct, doesConform, doesConform, equal, equal, equal, equal, equal, equal, equal, equal, equal, equal, equalOuterJoin, equalOuterJoin, equalsIgnoreCase, equalsIgnoreCase, except, except, exceptAll, exceptAll, exists, existsNode, extract, extractFields, extractPrimaryKeyValues, extractValue, extractValues, extractXml, from, fromConstant, fromLiteral, get, getAsOfClauseRecursively, getClonedField, getFunction, getFunction, getFunction, getFunction, getFunctionWithArguments, getNumberVal, getOperator, getOperator, getParameter, getParameter, getParameter, getProperty, getSelectionFields, getSession, getStringVal, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThan, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, greaterThanEqual, hashCode, hexToRaw, ifNull, in, in, in, in, in, in, in, in, in, in, in, in, indexOf, intersect, intersect, intersectAll, intersectAll, isClassTypeExpression, isCompoundExpression, isConstantExpression, isEmpty, isExpressionBuilder, isFieldExpression, isFragment, isFunctionExpression, isLiteralExpression, isLogicalExpression, isMapEntryExpression, isNull, isParameterExpression, isRelationExpression, isSubSelectExpression, isTableExpression, isTreatExpression, isValueExpression, lastDay, 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, 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, ref, regexp, regexp, registerIn, replace, replicate, replicate, 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, trim, trim, truncateDate, twist, union, union, unionAll, unionAll, value, value, value, value, value, value, value, value, value, value, valueFromObject, variance, writeAlias, writeField, writeFields
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Constructor Details
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ManualQueryKeyExpression
public ManualQueryKeyExpression() -
ManualQueryKeyExpression
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ManualQueryKeyExpression
public ManualQueryKeyExpression(String impliedRelationshipName, Expression base, ClassDescriptor descriptor)
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Method Details
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equals
INTERNAL: Return if the expression is equal to the other. This is used to allow dynamic expression's SQL to be cached.- Overrides:
equals
in classQueryKeyExpression
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descriptionOfNodeType
INTERNAL: Used for debug printing.- Overrides:
descriptionOfNodeType
in classQueryKeyExpression
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getOwnedTables
INTERNAL: If we ever get in the circumstance of a manual query key to an aggregate, then we can assume that the owner of that aggregate isn't participating (and even if it is, we can't know which node it is, so *DO* use the aggregate's parents tables- Overrides:
getOwnedTables
in classQueryKeyExpression
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getQueryKeyOrNull
- Overrides:
getQueryKeyOrNull
in classQueryKeyExpression
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isAttribute
public boolean isAttribute()INTERNAL: We can never be an attribute, we're always a join- Overrides:
isAttribute
in classQueryKeyExpression
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mappingCriteria
- Overrides:
mappingCriteria
in classQueryKeyExpression
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rebuildOn
INTERNAL: This expression is built on a different base than the one we want. Rebuild it and return the root of the new tree- Overrides:
rebuildOn
in classQueryKeyExpression
- See Also:
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twistedForBaseAndContext
public Expression twistedForBaseAndContext(Expression newBase, Expression context, Expression oldBase) INTERNAL: Rebuild myself against the base, with the values of parameters supplied by the context expression. This is used for transforming a standalone expression (e.g. the join criteria of a mapping) into part of some larger expression. You normally would not call this directly, instead calling twist See the comment there for more details"- Overrides:
twistedForBaseAndContext
in classQueryKeyExpression
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validateNode
public void validateNode()Do any required validation for this node. Throw an exception if it's incorrect.- Overrides:
validateNode
in classQueryKeyExpression
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