Package org.apache.openjpa.jdbc.kernel.exps
package org.apache.openjpa.jdbc.kernel.exps
OpenJPA-JDBC Expression Tree
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ClassDescriptionAbsolute value.A list of arguments to a multi-argument function.Coalesce expression.A collection-valued input parameter in an in-expression.Expression state.Concatenate one string with another.A unary operator that executes a datastore specific function with zero or more arguments.Expression tree context.Expression tree state.The simplified public view of any non-operator in a query filter, including constants, variables, and object fields.General case expression.Returns the SQL alias of the named column for use in a query.Find the index of one string within another.JDBC extension to the
AggregateListener.Expression factory implementation that can be used to execute queries via SQL.JDBC extension to theFilterListener.Deprecated.Deprecated.Usematches()instead.A literal value in a filter.Returns the Map.Entry<K,V> of a map value.Expression state.Returns the key of a map value.Expression state.Value produced by a mathematical operation on two values.A literal null value in a filter.OPENJPA-1794 An aggregate unary operation that can indicate whether a null value from the data store should be returned as null.NullIf expression.A parameter in a filter.Expression state.A path represents a traversal into fields of a candidate object.Expression state.Struct to hold the state of a query expressions instance.Turns parsed queries into selects.Simple case expression.Simple listener which embeds its SQL argument into the query.Deprecated.UseSQLEmbeddirectlyDeprecated.UseSQLEmbeddirectlySquare root.Returns the number of characters in a string.A subquery.Take a substring of a string.Lower-cases a string.Upper-cases a string.Returns the number of characters in a string.A type literal value.A Value represents any non-operator in a query filter, including constants, variables, and object fields.Value produced by a when_clause of a case expression.Value produced by a when_clause of a case expression.
matches()instead.