How to use
buildDeleteExpression
method
in
org.eclipse.persistence.internal.descriptors.OptimisticLockingPolicy

Best Java code snippets using org.eclipse.persistence.internal.descriptors.OptimisticLockingPolicy.buildDeleteExpression (Showing top 3 results out of 315)

Common ways to obtain OptimisticLockingPolicy

private void myMethod () {
 OptimisticLockingPolicy o =ClassDescriptor descriptor;descriptor.getOptimisticLockingPolicy()
UnidirectionalOneToManyMapping unidirectionalOneToManyMapping;unidirectionalOneToManyMapping.getReferenceDescriptor().getOptimisticLockingPolicy()
ExpressionQueryMechanism expressionQueryMechanism;expressionQueryMechanism.getDescriptor().getOptimisticLockingPolicy()
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}

/**
 * Build and return the expression to use as the where clause to delete an object.
 * The row is passed to allow the version number to be extracted from it.
 * If called with usesOptimisticLocking==true the caller should make sure that descriptor uses optimistic locking policy.
 */
public Expression buildDeleteExpression(DatabaseTable table, AbstractRecord row, boolean usesOptimisticLocking) {
  if (usesOptimisticLocking && (this.descriptor.getTables().firstElement().equals(table))) {
    return this.descriptor.getOptimisticLockingPolicy().buildDeleteExpression(table, primaryKeyExpression, row);
  } else {
    return buildPrimaryKeyExpression(table);
  }
}

/**
 * Build and return the expression to use as the where clause to delete an object.
 * The row is passed to allow the version number to be extracted from it.
 * If called with usesOptimisticLocking==true the caller should make sure that descriptor uses optimistic locking policy.
 */
public Expression buildDeleteExpression(DatabaseTable table, AbstractRecord row, boolean usesOptimisticLocking) {
  if (usesOptimisticLocking && (this.descriptor.getTables().firstElement().equals(table))) {
    return this.descriptor.getOptimisticLockingPolicy().buildDeleteExpression(table, primaryKeyExpression, row);
  } else {
    return buildPrimaryKeyExpression(table);
  }
}

/**
 * Build and return the expression to use as the where clause to delete an object.
 * The row is passed to allow the version number to be extracted from it.
 */
public Expression buildDeleteExpression(DatabaseTable table, AbstractRecord row) {
  if (this.descriptor.usesOptimisticLocking() && (this.descriptor.getTables().firstElement().equals(table))) {
    return this.descriptor.getOptimisticLockingPolicy().buildDeleteExpression(table, primaryKeyExpression, row);
  } else {
    return buildPrimaryKeyExpression(table);
  }
}

Javadoc

INTERNAL: When given an expression, this method will return a new expression with the optimistic locking values included. This expression will be used in a delete call. #see this method in VersionLockingPolicy

Popular methods of OptimisticLockingPolicy

addLockFieldsToUpdateRow
INTERNAL: Add update fields for template row. These are any unmapped fields required to write in an
addLockValuesToTranslationRow
INTERNAL: The method should update the translation row with the correct write lock values. This meth
buildUpdateExpression
INTERNAL: When given an expression, this method will return a new expression with the optimistic loc
clone
compareWriteLockValues
INTERNAL: This method shouldn't be called if supportsWriteLockValuesComparison() returns false. This
getBaseValue
INTERNAL: This is the base value that is older than all other values, it is used in the place of nul
getValueToPutInCache
INTERNAL: Return the value that should be stored in the identity map. If the value is not stored in
getVersionDifference
PUBLIC: Return the number of versions different between these objects.
getWriteLockField
INTERNAL: Return the write lock field. #see this method in VersionLockingPolicy
getWriteLockUpdateExpression
INTERNAL: This method will return an expression that is used to update its optimistic locking field
getWriteLockValue
INTERNAL: This method will return the optimistic lock value for the object #see this method in Versi
initialize
INTERNAL: It is responsible for initializing the policy. #see this method in VersionLockingPolicy

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How to use buildDeleteExpressionmethodin org.eclipse.persistence.internal.descriptors.OptimisticLockingPolicy

Best Java code snippets using org.eclipse.persistence.internal.descriptors.OptimisticLockingPolicy.buildDeleteExpression (Showing top 3 results out of 315)

How to use
buildDeleteExpression
method
in
org.eclipse.persistence.internal.descriptors.OptimisticLockingPolicy